I thought the question WAS guesting - exactly that!
If you have 1-2 or WHATEVER american players commited for a whole season, that - well - sucks for some opposing teams, but at least you have them as a somewhat "valid" part of the team for that season in question!
The real problem as I see it, is teams who suddenly realises the problems they are in say after the 2nd or 3rd event - and panics about the fact that they might get relegated, and THEN bring in loads of "little helpers" in order to keep them up in the CPL.
Now THAT sucks!
