Besides the stereotype he's been branded with as the owner/GM who calls all the shots much to the chagrin of everyone else in the
organization, what actual proof do either of you have that Jerry DOESN'T delegate?
Garrett has a ton of input into what kind of players we bring in. The defensive coaches certainly offer input into what kind of players they need for their schemes. The scouting department isn't paid to sit around and do nothing.
Jerry is the guy who puts his face out there and wears the GM title because he wants credit if/when the team starts winning again. He craves it. So others in the organization have to swallow a bit of pride when working for Jerry. But that doesn't mean he actually runs the team like a dictator. Jimmy himself said Jerry never meddled. The only reason anyone would think Jerry's been calling his own shots for the last 10+ years is because of the perception that's been attached to him.
Either way, there's no way you can spin a .500 record into being the 6th worst GM in the NFL. If anything, he's proven to be average... and "average" falls somewhere in the 12-20 range.