I for one think they do.

Lets look at the current power forwards and legit centers on the roster of the Celtics heading into the season. Please note: I  am counting Baby on the active roster, even though he is injured and a temporary player may take his place on the roster

CENTERS (Legit ) :

1. Perkins   2. Wallace 

POWER FORWARDS :

1. Garnett    2. Davis        3. Williams    4. Scalabrine   (5. Wallace)

As you can see the number of power forwards on the roster out number the number of legit centers on the team 4-2 (The number is 5-2 if you count Rasheed as a power forward since he can play that position also).

I think we have way too much depth at the power forward position and not enough depth at the center position.

Take for example the current injury to Baby Davis, though he is injured, we still have 3-4 other power forwards on the roster to fill in for him.

But if either Perkins or Rasheed get hurt we would then only have 1 legit center left on the roster, no one else.

Please do not suggest Baby or Williams can be our back up centers because though they can perform back up spot duty at the position against smaller centers, they are "NOT LEGIT CENTERS" and do not have the height or length to play the position effectively , especially against the taller, longer true centers in the NBA.

I think the front line should have more balance between the Power forward and  Center positions and believe the Celtics should balance things out by trading one of our 4-5 abundant power forward players in exchange for a legit back up center.

That way we will have 3-4 legit power forwards on the roster but also 3 legit centers, giving us more balanced  depth at both positions.

Since Scal I believe is the most expendable of our 4-5  power forwards and has a appealing $3.5 million expiring contract, I think the Celtics should trade him for a back up 3rd string legit 7 foot center.

The Celtics do not have to go out and get a hall of fame back up center, just a affordable big center with size and length who can come in, rebound, block some shots and defend the low post against big centers like Shaq and Howard.

The C's should easily be able to find a low cost, talented back up center to trade for using Scals contract as bait.

Former C's back up centers PJ Brown and Scott Pollard were low cost players, but talented enough to get the job done as back up centers, so if the Celtics can find a backup center in the mold of those 2 players I think it would be a very wise move providing depth at the center position and vital insurance in case Perk or Rasheed get hurt.

Does anybody else agree with me that having 4-5 power forwards on the roster is overkill, that having only 2 legit centers on the roster leaves us thin at the center position ( especially in case a injury strikes) and the C's should remedy the matter by trading Scal for a back up center to balance the front court out and beef up our legit center position depth?