Derek Fisher signs with Oklahoma City Thunder

"We have a lot of confidence in the group that we have in place, obviously, to be where we are right now," Presti said. "We know we can improve. ... We feel like Derek's someone that can help enhance where we are currently."

Two-time scoring champion Kevin Durant endorsed Fisher's arrival even before he had officially signed and envisioned him as a mentor to the young team who's still able to hit clutch shots and defend. He was hesitant to look forward and assess Fisher's impact on the Thunder's championship hopes.

"You can ask as many questions as you want, but it's a little different if you go through it yourself," Durant said. "I'm just going to just try to pick his brain as much as I can about the game of basketball but at the same time, of course if I want to get to that goal, I'll have to experience it myself."