That's the key isn't it? If Roman gets him space like Gailey did, then keep CJ, most definitely. If Roman runs CJ up the gut in power formations like Marrone did, then we need to let him sign elsewhere. It's all dependent on the system Roman wants to run.
That was the major difference imo... we ran CJ out of spread/3+ WR formations under Gailey, whereas Marrone used a lot of two TE sets, bringing more defensive players into the box.