Finally, a weakness: Not that we're looking for things that rookie inside linebacker C.J. Mosley doesn't do well, but given the glowing reports he's gotten, it's worth noting when he struggles — even if it's something the entire league struggles with. Early in seven-on-seven drills, Mosley was beaten in coverage for a touchdown by San Francisco tight end Vernon Davis. Davis also made a catch over Mosley during full-team drills later in practice. Mosley has been good in coverage otherwise, so we'll chalk it up to Davis being nearly unstoppable.