It's easier for Jones to maintain the status quo rather than trying to find a new puppet. There aren't many left that will continuously kiss his ass and tow the company line.
He's a fvcking snake oil salesman, plain and simple.
^
This
The only reason he dumped Wade so quick was because he was only a placeholder to begin with and had Garrett waiting in the wings. We went to the playoffs twice in the 3.5 years Wade coached. Even won 1 of our 2 playoff games in the last 22 years during that 3 year stretch. We were 1-4 when Romo got knocked out for the season, and all four losses were by 7pts or less.
Not making a case we should've kept Wade, but no way would Jerry have fired Garrett if we had been coach and we had been to the playoffs 2 of the 3 years including having home field for one of those seasons. The first 3 seasons Garrett coached we missed the playoffs and have only been twice in 7 years, once winning only a wildcard and once with homefield and one and done...same as Wade did his first 3 years prior to getting fired.
Truth is Garrett is who Jerry wanted all along and just waited for the first opportunity to make the move. Now he'll keep Garrett no matter what, wasting at least a decade since he has no one waiting in the wings and has no desire to actually hire a legit HC.