Doesn't necessarily mean that he would trample the competition.
On the whole I think Top11 is quite balanced.
For example from my Top11 friend list, there is somebody with a 9 star first team that dominates league, CL and assoc, but got eliminated in the cup already by a much higher level opponent, even though he also got almost an entire reserve of 1 star players to lower his overall quality.
Then there is this other person who only got a low 5 star (80-90% quality) team and is on track to win treble, but isn't doing too well in assoc for obvious reasons.
A couple of cup rounds ago I eliminated a fellow active 6 star team whose league was topped by a low 5 star team by a large margin... I felt quite sorry for him
If you go no brainer and max out your team with a load of cash, you are just going to have a hard time in the cup, no? I mean while someone gets frustrated facing a 8-9 star team in assoc, there is also someone else laughing while beating the very same team in the cup. It's looks pretty fair to me =)