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Ronnie Brewer: D
Ronnie Brewer was brought on to bolster the bench and provide some spot minutes of defending, but the 28-year-old just isn't capable of much while on the floor.
The Rockets get outscored by nine points per 100 possessions with him on the floor and outscore their opponents by six with him sitting. Not all that surprising, considering he's shooting 20 percent from the field and 12.5 percent from the arc.
Greg Smith: Incomplete
Greg Smith suffered a leg injury early on against the New York Knicks, which forced him to miss a month. Since, he's been sporadically in and out of Kevin McHale's lineup, exceeding 14 minutes just once.
Smith is a 23-year-old big body with promise on both ends, but the depth chart seems to be a bit too top-heavy for the 6'10" center to make a real push.
Isaiah Canaan: Incomplete
As a rookie and the fourth point guard on the roster, Isaiah Canaan won't be seeing much time unless something really, really bad happens to Houston's backcourt.
The rookie out of Murray State has logged 20 minutes over five games this season and shot 1-of-4. But he is shooting 100 percent on two-pointers. Not bad!
Robert Covington: Incomplete
Robert Covington is another 23-year-old who watches most of the games from the far end of the bench. Maybe you see him every now and then.
He made the Rockets after playing for their summer league squad and has spent most of the season in the D-League. Here's half of his face.
All stats gathered from NBA.com/Stats or Basketball-Reference unless otherwise noted.