He's a "veteran's minimum" player
Look at the situation he was put in games 1-4. He's the ONLY player out there for Miami to load up on and he's trying to either take quick pg's off the dribble or shoot over the bigs on the switch. Tonight, he was put in a situation to be successful. He's not the only focus of Miami's defense, he has guys around him who can drive/shoot/pass and he's so much more effective. Yes, he can't be a 1 on 5 guy anymore, but I couldn't imagine him anywhere else.
Time to put (and keep) him in the starting lineup for the rest of the series and then do the same thing next year!