Because other than Matthews I don't like our receivers' ability to run after the catch, which is a staple of the WCO. Wallace does well if he has open space but he doesn't run with any power through contact or with much quickness. Hartline is frail through his lower half and seems to prefer falling down (though he's great on the comeback as you point out). Gibson is just not a very special athlete in any respect. Gets what's there and that's it.
Matthews has the kind of thickly built lower half and running instincts to fit in really well. But the rest of the guys are not great fits.
At the same time, any offensive coordinator we're going to hire is going to be a WCO guy so this isn't likely to be a particularly big issue in Kubiak's scheme. But I think if you look at guys like Andre Johnson and Nuke Hopkins and compare them to our guys you'll see what I mean.
---------- Post added at 01:21 PM ---------- Previous post was at 01:20 PM ----------
Good problem to have, though, don't you think?