You can say that you're "changing the team" is when you buy or sell players and of course, in this case "team cohesion" suffers but you just rotate your players and it's a totally different thing.
Dude, I agree with you... the game might be frustrating as **** right now and you might have 30 shots 70% possession and your opposition only has 1-2 shots but you lose…
Heh... anyway I find that TFF's tactics give you the most chances to succeed right now. :)