If peers say Leach deserves it, he does
I bet Foster would rank Leach in the top 10, as would many linebackers and safeties who had to face him on lead blocks.
This situation really is a tough one. Leach is a great fullback, the type of guy a lot of teams would like to have. He's clearly of high value to the Texans and, since he is a rarity, I believe he's a "Top 100" player. The thing is, we know that fullbacks, especially lead-blocking ones -- not H-back pass-catchers -- have diminished in value as NFL offenses become more spread out to bolster the passing game. Houston is one of those teams, in fact.
Which leads me to this: The fact that Leach distinguished himself among his peers, at a position that many teams don't highly value, makes him worthy. We could debate that No. 65 is too high, but he has done his job well for years without receiving lots of recognition.