Spurs down two, about 3min left Portland got 2 offensive rebounds on the same play and then Deni nails the 3 to go up 5.
Then the Fox play with about a minute left. Fox gets the steal, driving in, but doesn't have the open lane for the easy layup because transition defense is back, but instead of creating something he goes through and tries to do a 180 spin mid-range shot from ~12'.
We are down 1 and have the full 24 seconds, fire up the offense. Go straight at Clingan, because he either fouls out and we get two shots or he gives you the look to not foul out. Either way, it is a plus possession. But Fox makes the worst decision and fires a bad shot with 20 seconds left on the shot clock.
Gotta prevent the offensive rebounds in crunch time (same story as Knicks game in the Cup) and gotta create good shots. There was no reason for Fox to take a bad shot with 20 seconds left on the shot clock.