Ruud Van Nistelrooij does also not have experience of a big league, assuming we mean, EPL,Serie A, La Liga, to lesser extent Bundesliga, but Man Utd were still going to sign him. And what's more, Koller has scored 30 goals this season, Van Nistelrooij 29, taking into account he's been injured for a while, but Koller could be just as an exciting prospect as Van Nistelrooij.
And about his size, is Koller really that tall, why didn't he play basketball instead?