Owner of the Palace of Wisdom
My theory is this...
1. While Rex may not be the reason candidates are turning down the Jets, I have no doubt he's a problem. Remember when we were looking for a GM way back in the day, Wayne Huizenga told all candidates that they would not be allowed to fire Wanny. Pretty much every candidate withdrew their name.
2. The cap situation is just difficult. With how the contracts are set up, unless they can get teams willing to make a trade, they cannot get rid of contracts. If they cut players, they'll have dead space.