For me, OG will always remain the beatles of EU. While other teams had consistent success and lasted for far longer than they did (FNC being EU's equivalent of the rolling stones), terrible decisions both managerial and game-wise are killing them off scarily fast. I'll go through a list of all the main problems in 2016, to try and shed light on my view of this:
-The loss of Zven/Mithy, acquisition of Forgiven: Possibly the biggest reason for their thoroughly abysmal summer split, and without question the worst thing that has happened to them since they came into EU. While losing their botlane was "sorta" out of their control, who they replaced them with was a horrible/baffling decision. Forgiven came off a spring-split h2k team which many (including myself) had finishing 2nd in EU, but collapsed back to earth with people citing his attitude/"leadership problems" as the result of that (basically, many people consider him one of those people who will berate everyone for their mistakes but won't do anything to help correct them and won't open up about his own mistakes). Because of this, he was released from h2k with the assumption that he would take the summer off/"retire". The fact they chose to take him instead of aggressively pursuing any of the top-tier challenger ADC's (Krislund/hans sama being the "top two" ) has gone on to haunt them horribly, and is one of the big causes for their summer so far.
-The "Coaching Carousel": Fun Fact: since the beginning of the spring split, only one team across all the major regions (NA/EU/LCK/LPL) has used five different coaches. If you guessed that it would be OG (with Hazel/xpeke/bali/nico/aranae), you would be right. Typically, coaches are brought in to bring both a style and a "goal" for teams to adapt to. Because OG has gone through so many of them, the team has often had to rely on their own skill/strategies to win games instead of utilizing a "team style". While a good team can theoretically win without a coach, being forced to use multiple ones in both splits has to be a massive burden.
-The massive lack of shotcalling: Want to know another thing that OG is leading all major regions in right now? Longest game time of teams. With an average gametime of 43mins (and three different players breaking the world CS record against them), many can look at this and the previous two points and come to the simple conclusion that they lack a reliable shotcaller now. Teams with good shotcalling can usually end games without being forced to stall. The fact OG is stalling hard shows a clear lack of direction by them, which is a massive concern going forward.
Where I see them at the end of the split: Being an avid challenger watcher/fan of misfits, it's almost certain that they will take an LCS spot in the promotion tournament only because they look to be unstoppable right now. The big question becomes: who will end up forfeiting their spot to them. Both Roccat (yet another team fighting to stay out of 10th) and OG have looked relatively close in skill-level, so we could very well see both of these teams fighting all 5 games on the final day of the tournament.