I think that i shouldn't be able to see the starting eleven that my opponent plans to use to face me. Yes, we would still be able to see his last formations and starting players, but we wouldn't be able to see if suddenly he changed his 4-1-4-1 to a 4-5-1v, for example. It would work both ways (he wouldn't see my changes too). This is how it works on real football. We all know how a team is used to play, we all know who will probably be the starters, we all know the squad from the team, but you don't know if for this single game the manager is going to try to do something insane. Top Eleven would become more entertaining if we couldn't see the opponent's lineup formation.