International players are by far the biggest gambles for this reason: scouts simply don't know the level of competition.
But, with every international player there seems to be one common denominator: skilled big men. Unfortunately, that can either mean Darko Milicic, or Dirk Nowitzki.
Best Case Scenario:
Enes Kanter is your prototypical skilled big man, having the ability to knock down the 15-footer if needed. For that reason, Al Horford is the perfect match. He, too, is a big man who can knock down wide-open mid-range shots, post up, block shots and rebound the ball well. Basically, everything a big man can do, but with a little extra added on.
Worst Case Scenario:
The problem with European big men, as previously mentioned, is that they can turn out to be not as "skilled" as advertised. That all they bring to the league is a mid-range jump shot with no post moves because they can't compete with the physicality at this level. In that case, which, sadly is very probable, Kanter could become a Kurt Thomas-type, relying on his mid-range without a real post presence.