Here's the logistics, IMO:
SCORING THREAT AND REAL ESTATE EATER:
Jacoby Jones is chomping up the field in bigger chunks when he's out there, as compared to David Anderson who is bottom man on the totem pole when it comes to practically every statistical category. His 6 TDs is four more than Walter and 6 more than Anderson. He's the guy who can score if he gets the ball in the right spot at the right time.
THE SAFETY VALVE WHEN SCHAUB IS UNDER PRESSURE:
David Anderson makes those little short, choppy receptions where other guys are covered and Schaub needs to get rid of the ball quickly. He runs the quick-outs, the little slants, etc. It's his role. But he gets hunted down once he makes the catch, and he's no real threat to a defense on a down-by-down basis. His role is to catch that ball and make something out of nothing.
THE "GO TO" GUY WHEN YOU NEED A 1st DOWN:
Kevin Walter is the guy who has the most 1st downs (33 compared to JJ's 19 and DA's 22). He has the most comparable stats to JJ, but yet he's not getting into the end zone that much. He's the guy, on 3rd and 6, who runs a curl route and ends up getting 6.5 yards and the first down for you. And, he's the guy who is out there finding the empty areas of the field that are cleared out by AJ and OD. He has the heighth and the arm length to grab those lofted "touch" passes that slip over the heads of the defenders who lost track of him.
Theoritically, all three guys are doing things that are unique and provide the offense with aspects that enable the offense to be potent with Andre Johnson out there. With a good, calm QB who stands in there and throws the ball (Schaub) it's why this offense is doing so well. And this is not even considering what Owen Daniels brings to the mix. He has traits of all those three guys, maybe even approaching the level of dynamic skill set that AJ has.
Keeping all these guys together, IMO, is a smart thing. If it can't happen, I think Martinez can fit either Anderson's spot or Walter's spot if we lost either Anderson or Walter.
But if I had to choose to vote one of those guys out of the Texans tribe, I have to reluctantly write down David Anderson's name on the slip of paper. Nothing personal. But I'd like to retain Walter's skill set when compared to David Anderson's. While DA's role is important, I think it's the one Wr role that can be filled most easily.
That's my whole opinion on the issue of our WR crew. I think it's smart to keep these guys together. They have a good thing going on--they are in rhythm with one another and know what to do at all times--so I hope we keep those pieces in place.