Sheed's a big part of Operation Fo' Fo' Fo' with Pierce in the frontline.
In this setup, KG will be a point power forward, in the sense that he'll be serving two purposes... a scoring decoy, his first task is to detect a perimeter guy coming off a screen (see Ray, Nate) or PP/Sheed in the paint, and finally, to take the mid-range shot himself but only when he's wide open.
Clearly, for this move, Nate dribbles over half court but then, KG initiates the ball movement for the primary play.
The primary play here is Sheed's catch, off the bounce pass in the post from KG, a few shake and bake moves, and dropping pts over his defenders.
The 2nd play is the high pass to the perimeter guy for a outside shot.
The next play is the olde pick 'n roll with Pierce but with the idea here is that Pierce sends the ball back to Garnett to re-initiate the above two plays.
For the above to work, opponents will overestimate PP's and KG's desire to take the final shot and hence, will fall for one of the decoy plays.