This is a feeling I don't share and I'd be interested to know why you feel this way?...
We've got issues, but I still think the personnel on offense is pretty much in place. Significant but do-able changes are necessary, but it amounts to upgrading OT3 and adding a WR who can stretch defenses in a WR-deep draft. I'd add a vet QB if the right one is available, and maybe a change-of-pace RB, but--except for the OT--it's all stuff I'm confident the team can easily do in an offseason.
The defense is where I've wanted talent added for *years.* We finally started that process last year, and did a good job infusing some talent. It's where I think we're going to spend most of our resources this offseason. We've got extra picks, and should have a bit of cap room if we want to target anyone in VFA. We need to add a DT, a S, and another ILB, on top of singing Lawrence and Hitchens in my book. Both the DT and the S need to be impact players, if at all possible. At DT, Collins gives us the luxury of signing either a 1-tech or a 3-tech. There are a handful of quality veteran 1-techs available if we want to go that route. Or there will be a DT at #19 there for us in the draft. S is the position I worry about being able to fill. Vaccaro probably won't hit the market. Morgan Burnett? I don't know what GB intends to do with him or if he's still the player he was a couple seasons ago. Eric Reid, maybe? Anyway, S is the tough one. ILB we ought to be able to fill with a couple of draft picks, especially since we'll be adding mid-round LBs for STs and to replace Wllber and Durant who we're going to lose.
The coaches, I like the current staff, so it's not surprising we see them differently, but I don't consider coaching to be a negative in Dallas. I like both the Richard and the Lal hires. I don't like promoting Moore straight to QBs, but at the end of the day, it's not a huge issue for me.
Finally, I expect a lot less distraction all around this season. Between the trumped up suspension that dragged out from camp through week 13, the stories of Jerry suing the Commissioner and other owners, the anthem stuff that Jerry was in the middle of, and some of the hints of dysfunction on the offensive coaching staff we hears stirrings about, things were just...messy. Despite all that, we still managed 9-7, have a handful of bonus draft picks and a bit of cap room. We aren't aware of any suspensions looming, yet, and we don't have significant offseason surgeries to worry about. It should be a healthy and fairly-competitive team we start out with in camp. We're not in the shape PHI will probably be in, but we could be close, and we should be their primary competition for the East again next season.