Fisher needs to decide what players he wants to use late in games. Obviously, Anthony needs to be on the floor, and so does Porzingis. Galloway’s shooting and defense on quicker guards makes him an obvious addition as well. The other two players can rotate between Calderon, Afflalo, Lopez and even Grant depending on matchups. There’s no reason for Amundson, Seraphin, or Thomas to be playing over any of the players above. They just aren’t as good. Twice in recent games Fisher has given Thomas the responsibility of inbounding in key end-of-game situations, and twice he has thrown bad passes.
This is a pretty well-articulated version of what a lot of us having been saying in other threads. It's great that Lance, Lou, and Seraphin have been giving us quality minutes, but Fish seems to be over-inflating the impact of their over-achievement. Even when playing better than expectations, these guys just aren't as good as Lopez and Afflalo.
I actually don't have a problem with Lance or Seraphin being one of the final 5 occasionally, depending on matchups, foul trouble, or other game dynamics. But to be consistently going with Lance and/or Lou down the stretch in the important final moments of close games is foolish, especially if it's at the expense of someone like KP or Gallo (and eventually Afflalo, as he continues to get back into the swing of things), who are strong on both sides of the ball.