I think Chriss would be worth a shot in the summer on a minimum or two-way.
He is bad now and probably can't be fixed
BUT he has been underserved by coaching severely in college and the NBA. Washington was a coaching mess and players just ran around like chickens with their heads cut off playing rec league. I was down on Murray after the draft because of so many videos of him being lost on defense and incredibly raw, but not following NCAA closely, didn't know about Washington's crap situation. Murray WAS very raw and out of it, and it wasn't an overnight process with the Spurs coaching staff, and of course credit to Murray for working hard and being smart ... but it's incredible that Murray in just two years of real coaching and development got him to the NBA second team all-defense.
I don't think it's too outrageous for the Spurs to try on Chriss when he's cheap. His pro coaches were 'players coach' Earl Watson, who was thoroughly unprepared to be a head coach after one season as an Austin Spurs assistant and then one half-season as behind-the-bench player development coach for the Suns and then elevated to head coach.
Chriss's second year coaching was Watson being fired after 3 games and having subs ute teacher Triano tank out for the franchise.
Now he's been saddled with D'Antoni's "Let's go, let's go!" style of coaching. And the assistant defensive coach for the Rockets that got all the love and credit last year retired before the start of this year. Chriss can't catch a break.
He's probably finished, because if he was smart enough he would have developed some on his own and picked up some things, but I could see him as a reasonable reclamation project who could be beneficial to have as Murray's teammate.