Both Franklin and Adams played a bunch of STs, which is what most see Glasgow as being limited to. I think what Glasgow has over Franklin, is that he could possibly slot as Mike, where Adams and Franklin don't. Assuming their happy with the Walker and Oke (passing downs) rotation at Mike, with Oke starting at SAM, it might come down to the fact we don't need 2 Sams behind Oke. Ideally though, we never want to really see Adams, Franklin, or Glasgow starting at any of the LB spots. I'm actually hoping Speed emerges this year as a quality backup. He certainly has the measurables.