In a recent tweet by fellow ex-Bengal and great American Willie Anderson, he shed some light on the Jeremi Johnson situation this offseason:
Yeah Right! Mike Brown won't let them cut Jeremy Johnson. He made the coaches go find him in Kentucky this offseason.
This is the same Jeremi Johnson that has come to camp overweight and unprepared almost every offseason. The same one who hasn't contributed since his flurry of fake handoff touchdown receptions in 2005. The only reason Mikey keeps bringing him back is because Mikey is such a good guy! He just finds a softspot in his heart for certain worthless/troubled players, and has to enrich them with NFL salaries.
The opportunity cost of this of course is the possibility of signing a fullback with real talent, and one that would contribute in taking us to the next level. But there is no "next level" with Mike Brown. He is quite alright being "competitive", and taking care of his guys in the process.