Not my thoughts but those of an internet acquaintance who follows German bball closely:
"I think Moritz Wagner is going to be a very good role player
Mo has "very good" weaknesses
Mo's weaknesses are athleticism and defense which have less to do with talent more with hard work
Offensive skills have more to do with talent, you can still train them, but it's much harder
His biggest strength is the pick and pop game
He has the height and he has the throw to chuck over even the big boys in the NBA
His throw reminds of Dirk Nowitzki
The motion and looking at his release (which isn't the quickest tbh) really reminds me of his
His transition game is really good as well
He's not the fastest or the most explosive (even though he has a good first step) but he has a good game sense for reading and knowing what he has to do
When the rebounds of his own team get snatched, most of the time he will be already at the half court line
He's not the fastest but he switches the fastest
The fewest college players are good defenders, Bamba being one of the exceptions ...
Give Wagner a good coach who works with him on the athletics and defense and Wagner becomes one of the better NBA players
I don't want to say All-Star, it's too early to say, if his chances were big he would have been drafted earlier
His potential: Julius Randle, Jabari Parker, Serge Ibaka
Overall of course he will never be as good a defender as Ibaka but he has the edge offensively."