Let's note that the owner you think makes so many mistakes also hired Garrett. So it's quite possible Jones screwed up the head coach hiring as well.
You said above that you think Garrett has game day coaching issues. How in the world can that not be a very, very important part of being a good head coach or that game day coaching is something people overvalue as it relates to a head coach?
I aspire for better than "fairly competitive". Maybe you don't. But the reason why this team isn't in the elite levels of the NFL is partly talent but also the coaching.
Ok. Let's note that. It doesn't follow that because somebody makes mistakes sometimes everything they do is a mistake.
I"ve explained my take on the gameday coaching stuff already, but the primary criticism there was he needed to improve his clock management, and I think he has. You hear a lot about play calling, but one, the coaches all communicate, two, he's no longer calling the plays, and three, the plays all have multiple options and Tony decides how they get executed, and four, we've been pretty good (offensively) under Jason Garrett anyway. A great game day coach (staff, really) is an asset, for sure. But there have been a lot of very successful teams in the league that didn't necessarily excel on game day. The assembled their personnel, had depth, have their responsibilities down cold, and win by out-executing the other guys. That's how it happens most of the time.
And it's because I aspire to be better than 'fairly competitive' that I don't want to change the pieces of the puzzle that actually fit well. We've got limited resources. Use them where they're going to help and don't blow it up and start over because 'if something's not right, then everything's not right.' Give this team an impact pass rusher, another above-average Safety, and some LB depth and we're competing in the NFC right now as it is. I'm not willing to take it apart and start over because fans aren't happy that we took a mediocre team to 8-8 three teams a couple years ago.