I've seen a lot of people complaining about "noobs" buying priests too early in the game which guarantees a "GG" and win for the other team. People complain about teammates buying upgrades they shouldn't. I just thought of a solution that I think would help this. And I don't think it hurts anything.

What if you have a little window/notification that pops up on the side of the screen for all teammates when a player clicks to buy a citadel upgrade? It would say what player was trying to buy which upgrade and would have a "Yea" and "Nay" button to agree or disagree with the purchase of the upgrade. The upgrade can't be bought unless all teammates select "Agree" (or whatever the option should be called). That way you won't have the above-mentioned problem. If people disagree, they'll start typing out why it shouldn't be bought or whatever and it'd encourage some communication. And the notification wouldn't just pop up in your face and get you killed in a battle. It'd appear on the side of the screen and would be compact and minimalistic.

What do you guys think? Would this ruin the buying system?