Stan Van Gundy made a deal for this guy and didn't even put a plan in place to get his game going. As your superstar, you build around his strengths and at least put him in situations to succeed. Gundy didn't none of those things. The Pistons essentially made it easy for Celtics to contain Blake.
Team will be fine as soon as Gundy makes the necessary adjustments top to bottom. Look to next year for real signs that Blake has lost his mojo.