I think we might be needing to draft a corner high yet again.
Signing Rashaan Melvin was a big one, but we let go of Sean Smith, David Amerson (both disappointed after getting paid), and TJ Carrie. Only other corner we brought in was Shareece Wright and he's just a body, not a starting caliber player. Gareon Conley and Melvin should be a good enough starting duo, but we have no depth to speak of.
Otherwise, replaced Crabtree with Jordy Nelson, so not a lot of movement there. Nelson has lost his speed but is as good a possession receiver as Crabtree has been, but without the drama. Downside is guaranteeing his deal, whereas Crabtree had nothing guaranteed left.
Marcus Gilchrist and Tahir Whitehead are quality signings.
Nothing else of note, signing a backup tight end, a fullback, and Doug Martin to spell Lynch (though what they're showing in camp/preseason could shake things up).
Still waiting on Mack's extension. He's worth whatever they pay him.