What offenses can Sanchez, Barkley, Osweiller, and Glennon thrive in that Kaepernick can't?
Seems to me the only QB mentioned above that has thrived offensively in the NFL is Kaepernick.
They can hold clipboards & play "conventional" ball. Kap can be a back up in Seattle or Dallas, but NFL, coaches are arrogant who like to "plug & play". Harbaugh was willing to coach to Kap's strengths these other smug fuckers won't. It's how a lot of dudes career ended in the NFL.
So since they ain't going after Kap, they must be planning something for the draft or are going to get tricked by Bill for Matt Cassell 2.