Straight up, the dude doesn't have much to give anymore. He's been useless on special teams and when he is in on offense, he doesn't produce. He seems to have lost a lot of his explosion. Thus far through 4 games he's produced 4 catches for 29 yards on 5 targets. That's it.
The general argument from delusional fans is "potential!" or "remember what he did against KC all those years ago!". It's time to get over it and bring in a guy, a guy like Greg Jenkins who flashed a lot of game in the preseason and is currently on the practice squad.
For a team that's surprisingly been extremely proactive this year I can't wrap my head around the attachment to Jacoby. He doesn't bring anything to the table anymore. It's time to move on.