Allow me to preface this comment with after spending the rest of my morning typing this shit, I saw the link here in the comments to the "Riot pls" blog and saw where they actually were working on implementing Team Builder draft for ranked.
So, I guess you can collectively dismiss my post here below, but I'm submitting it anyway for the world to ignore so that I only partially spent the time for no reason, which I get is solely my fault. Fuck.
Anyway...
From my experiences with the opinions of the board, lots of people upvote/downvote/agree/disagree based on whether or not they think it has a chance of actually getting implemented, OR based on what they believe Riot's opinion would be, instead really considering it and giving their own opinion regardless of the chance of implementation or Riot's opinion on the matter is. If you, OP, get a lot of downvotes or nay-saying, don't take it personally, because while what you're suggesting isn't original (this is in no way the first time the forums have been requesting such a feature), it isn't a bad idea. But, and I absolutely accept I could be wrong, I don't think you're really considering the potential issues, whether actually affecting game play or just going against a core principle of the game.
From what I understood (and I could be wrong), the idea of Team Builder was implemented as a method of allowing you to build a personal team composition using the matchmaking process to aid you into finding participants. By that I mean, you could try to make your ideal composition in custom, but it was a little more frustrating to organize unless you already had four other players willing to wait in lobby for players to join the enemy team. While Team Builder does allow players to successfully lock in the lane they prefer to play, and was even partially advertised for with this reason, from what we were told it wasn't the driving idea for the mode. If the concept of Team Builder, which again is the ability to build your ideal champion composition, was implemented for ranked, the tweaks it would have to have in order to make it viable for such an important game type would make it a different selection mode entirely. But, unless I am misreading your post, you don't really want a Team Builder for ranked; you want to be able to guarantee securing your role in ranked, which once more is a byproduct of Team Builder, not really what Team Builder was designed for.
But before Team Builder existed or was even a concept being considered, players have been throwing out the idea for indisputable role/lane securing for blind pick and draft mode. Specific roles don't really exist in Dominion or ARAM, and it's much easier to "persuade" others to play how/where you want in a 3v3, so it generally was only an issue brought up for blind and draft pick modes (both normal and ranked draft), and as you can see, it still hasn't happened despite how long it's been wanted. I don't think this is because the idea is being dismissed or ignored, but that the arguments against the idea are valid enough to make it seem like a legitimately bad idea, or if not a bad idea then not a good enough idea for it to be worth risking the potential mass of player disapproval.
Currently with draft, the only real "problems" are:
.: Not enough bans compared to the amount of champions available
Bans aren't used in the way they were designed for anyway. They were designed to remove champions that make your desired team composition worthless; bans are instead used to prevent playing against "OP" champs or playing against the first pick's counters. The drawback to more bans is the requirement of raising the minimum of owned champions, which is only an issue because the amount of IP earned compared to the price of runes, rune pages, and champions. If you don't or can't spend any money for RP, as was my case when I first started playing, it takes several months to afford enough IP just to buy the required amount of champions you're decent at, let alone the amount of runes and rune pages required to be effectively diverse.
.: Player(s) not knowing how to play enough champions or roles well to be an effective teammate
When you queue into a match with someone arguing they can't play any role well except for one, if that player isn't lying and doesn't get their role, it causes the team to suffer. This happens extremely rarely in silver and beyond (which I think is obvious), but I've still seen people claiming such things in platinum and diamond tiers when watching streams on Twitch. As it stands, it is advised not to queue into ranked if you're only learned in one or two champions, even if you own enough to play them, and it is of my opinion that Riot should implement the need to gain a level 3 or 4 mastery in a specific amount of champions before being allowed to play ranked. If I had my way, which I absolutely understand the viewpoint that it is too restrictive and isn't a perfect solution, I'd implement that one could only play ranked with the champions they've secured a level 4 mastery on in normal draft mode, meaning they'd have to have secured that level 4 mastery with 16 separate champions in normal draft before they could ranked. This would also have a higher chance of being preventable by the role-securing idea instead, but in doing so whould cause more issues that are more considered more frustrating, so I don't consider it a valid argument.
These two problems are only mildly frustrating and more easily dealt with than the problems role-securing would threaten to present. The following are two arguments against being able to secure your role in ranked that I can both remember and actually have validity to them.
1.) Riot doesn't want to enforce a meta
The suggestion of role/lane securing in the context of the meta has several drawbacks. The goal of "the meta" is supposed to be that it slowly evolves, stabilizes, and then begins to evolve again as new ideas are realized by the players and as new functions for the game are implemented. By being able to secure roles, the threat of the meta becoming an unwritten rule instead of a community accepted guideline is present. Will it actually affect this any more than it is already? Maybe it will, maybe it won't, but the idea that it will isn't outlandish or irrational; it makes sense that it could. As it stands presently, the community already bitches and complains if someone challenges the meta outside of a custom game or bot match, even Team Builder finds it increasingly more difficult to find players willing to stay when they realize they're not queuing into a typical meta set-up (making part of its purpose of building your dream composition to be impossible to utilize). When Riot says it doesn't want the meta enforced, it doesn't just mean they refuse to punish players over challenging or breaking it, it also means they don't want to make decisions that inadvertantly allow player attitude enforce it.
2.) Multiple ranked modes
With the implementation of a different champion selection method for ranked, multiple ranked modes will have to be considered. Do we continue to keep only one ranked mode, changing the existing one and no longer having to able to take turns draft picking champions based on the order of Summoners on the list? Or do we have one draft ranked mode with its own ranking system and one role-securing draft mode with its own ranking system.
a.) If you choose the former option (one ranked mode), it's unfair to the majority of players who believe the cons outweight the pros. Even if the only thing that changes is you get to queue into a match having only selected your role/lane, allowing for a ban phase, a 1-2-2-2-2-1 turn selection rotation as before, even being able to switch champions at the end to help overcome the challenges of being first or last pick, literally the only difference being everyone present has a lane or role they intentionally queue'd in for, you're still faced with a handful of issues that some consider to be more frustrating to deal with than the issues in the current draft pick.
Examples:
.:What if I want to fill? I don't particularly want to play a specific role or champion, so I usually allow the others to choose the lanes, selecting from one of the lanes that haven't been chosen and based on which champions the enemy has picked.
.:Even if there was a fill option, what if I can't ADC? Usually I'd just say "I can't ADC, fill otherwise" and everything works out; if matchmade can't find an ADC and selects me as a wildcard "fill" option, my team is going to be less willing to switch roles with me because they queued in with the role they wanted instead of accepting the roles were open
.:Alright so you expect Riot to implement a "Fill except for these lanes" options, what about the player who queues in a lane expecting to play a specific champion, and that champion gets banned, the enemy selects, or another teammate selects the champion because of its lane diversity? Many of us shrug because we can play multiple champions in multiple roles. But what about the many, many more who can't? That player either dodges (which doesn't affect you so fuck them, right? Wrong. It causes them to suffer a loss as a result of this lane securing implementation, which isn't fair), or if they don't dodge forces the entire team to suffer because they either have to switch lanes with someone (which we've stated the players will be less likely to do considering they specifically chose the lane they wanted) or choose a champion they're not comfortable with and potentially make the game unnecessarily harder for others.
You get the idea.
b.) Multiple ranked mo
