I love Henderson. He gives his all and is a true pro, unlike guys like Hunt. But sooner or later he's going to run out of gas. I don't know if that time is this year or not, but it wouldn't surprise me if Henderson was the starter, and likewise I wouldn't be surprised if he didn't make the team.
I feel the same about Luchey. If Luchey can't stay healthy, or come to camp in shape, or show a better work ethic, I wouldn't be surprised to see him gone. But I wouldn't be surprised to see him as the starter if he puts his best effort to go with his physical ability.
And don't over look Leach. He was a punishing blocker the few times I seen him on special teams last year. He has the physical ability. If he made strides in the off season to learn the offense and improve his skills, he comes much cheaper than Luchey or Henderson.
Sherman loves Henderson, and I do too, but if TT wants to get younger and save some salary cap room, Leach could find a spot if he improved over the off season.
I think all 3 have different reasons why they will or won't be on the final roster. I think it will be interesting to see how it develops.