That may or may not be true. I'm sure you've probably seen more LSU games than me
I only saw Florida, Kentucky, Round of 64 (NC St, i believe?) And one more game early on in the seasonm plus watched Martin, Mickey and Johnny o a bit the year before and even less in HS.
But hey some guys get a wake up call in the NBA and if any organization knows how to put young guys in a position to succeed, it's the Spurs. I do agree that from everything I know about him, he isn't a "Spurs personality" but people grow and change

and like I said, some of the things he can do on the court remind me of Barkley. Not saying he has a chance in hell to be that good but even just flashes, show his enormous talent.
It's a good chance he flames out but picking that late, id take the 1/5 (or w/e) chance that he lives up to at least some of his ceiling.
However if he is that immature like you say, I'll go ahead and put Cliff Alexander in there. Similar situation but I like Martin a little more because he has some perimeter skills