JMO,
Safety took a step back, just like the DB coach did, when they changed the DC and how things were covered. If you bring back Zim, then you need different Safeties. If a different DC, then you could be good with both the safeties and the DB coach Harris. Might be a Need or could be Good.
Corner is fine when everyone is healthy....play the year with your best CB's either coming back from injury or getting injured, in a new defense, and yep --- hard to recover. Might be a Need or could be Good based upon health and DC.
LB is a NEED -- Overshown being out and style of play based on DC make this a big NEED.
DE is only a true need if Tank is gone and Parsons is going to be a defensive stalwart instead of a DE. (Who's the DC?) Kneeland, Williams, Tank, possible Micah for 2 positions
DT is a NEED
RB is a NEED
QB is a sore subject debated by many --- only a need IF certain situations arise.
TE last on the list -- Dallas is fine here, but of course could use a dynamic TD scoring, faster than WR, better stronger blocker than all linemen, stud. Good luck - IMO, what they have is good.
OL is fine, need to see what you have and hold accountable. Better OL coach would be nice.
WR is fine because you have a #1 WR, and several WR that might be able to step into that #2 role with the chance. Would it be nice to have a #1 WR acting as a #2 sure, but it is not a Need.
So IMO, the first 3 rounds of the draft should include DT, LB, and RB. (Order dependent on availability, trade downs, evaluations, etc) All three should be starting by mid first year or sooner.
I don't think you can find a WR in the 4th round or later in the draft, so FA WR for the #2. I am not saying a WR isn't needed, just that unless the idea is to replace CD in a few, then now is not the time to use the draft capital it would take to get, with the current needs.
Get a good FA situational pass rusher via FA. Doesn't need to be a starter, just a good rotational guy.
GM change isn't an option, but the QB signing was definitely a marketing guru signature, not a football guru signature.