MLS: Which players currently playing in MLS do you think should be playing in a good league from Europe?

Montero, Papa, Holden, Clark, the list goes on an on. But i wont to say id rather see most of them stay, these young talented players can really help the development of the league. I want to see MLS grow, an holding on to these players or most of them will do that. Now holding on to young players wont help the credability of the league but will help the development an that is more important then anything.