Good procedure for trading champions

Hello,

I try to spread the word and get people understand switching champions need fast and efficient procedure. I give my suggestion:

• If you want to get switch from first pick, you throw 3 champions you want to play in order you want to play. For example: Yasuo, Zed, Xin, and ask if he has any one of them and what he wants in exchange.
• Other player then states 3 champions he want to play in same order.

This way it gives fast set of possible switches. This allows withing first or second ban window to set up the trade, so banner can choose what to do.

Any opinions?