I would go easy on Salaun. He's a end of first round pick on a good draft you take a flyer on.
It's always a bit annoying when the first thing everyone repeats about a prospect is "He's a hard worker, he'll improve". You can translate it by: Raw, limited, lot of work to do, which is true for Salaun who doesn't have star potential at all.
I like the kid but he's just not a natural, doesn't have that feel for the game like Zach does for example... He stands out a bit in the french league becasue of his physicality and agressivity but that won't be enough in the NBA to be probably more than a mid-bench player/3rd stringer, if he actually belongs. there's nothing about him you could say he's even just good at and could become his bread and butter in the NBA.
He's closer to Sidy Cissoko than Risacher, and if he can get 10-12 min/ game in the NBA on career, that would already be a great success imo. Smoke screen from the spurs if you ask me. they're probably not interested while they already have Sidy.