I don't recall saying anything about mono-skilled beasts specifically. What I did say is that over a long period of time all the top teams in the game will eventually have at least one or two HOF/ATG players that have been trained up really high. With the latest salary increase it seems like this may happen later rather than sooner.
Perhaps I misinterpreted what you were saying - I don't have time to go back and look now.
In any case, unless there is a significant change in the salary structure going forward (which seems unlikely at this juncture), my opinion is that these fully trained HOF/ATG players will be completely useless, anyways. They will bounce around from team to team and constantly have game shape problems. You will see from some of the NT discussion out there that managers are already thinking they will have a tough choice ahead as to whether or not they keep these players on their roster.
So, like I said in the debate before, ATG potential is pretty much useless. I would not waste too much time scouring BB for these guys. The only exception will be players that are multi-skilled enough to make their high salaries worthwhile.
Run of the Mill Canadian Manager