Diggs/McD was our best safety tandem last year. IIRC both are under contract, so wouldn't mind them going forward.
Griff is better than many around here like to admit at CB. The question is Flowers. Was he in a sophomore slump? Or will he get better next year. Will be a lot of pixels spilled on that discussion, I'm sure. Amadi was great on ST, not so great in coverage. Blair would probably look good in our "heavy nickel" package as a 3rd safety on the field. With some experience he's maybe a starting safety in a year or two.
I remember Coleman as being competent, if not outstanding, so if he's available as a backup/3rd corner I wouldn't mind him coming back, assuming we don't over pay. We have a lot of cap space, but if we sign Clowney it will eat a lot of that.
We draft DBs every year, so I assume that will continue, but we'll probably prioritize DL before that. Ansah was disappointing, to say the least.