yea he's most likely going to be facing 1or two noob players but since there is not Diplo between intermediate and good player then he might still be attacked from every border he has. (say 2 intermediate bordering him and 2 noobs
which is sort of worst case scenario)
The problem that I see in my suggestion is that we might have to forbid diplomacy at all if it is 2v2v2v2 game, coz then some people might get raped by 2 teams joining up on them. Also I dont think that the starting positions should be random, coz like that you can easily get 2 players from the same team starting at the nice corner together and 2 players from another team starting on the opposite sides of the map. I was more like looking at it as if you could place the teams together and they so they could arrange some attacks together or have an expansion plan together or something like that. But I dont know probably I'm getting into too much detail.