They haven't had a true slot receiver for two seasons, and while the offense hasn't really suffered greatly because of that, it has certainly been noticed, especially against tough defenses with good pass rushes. Now they have Cobb, who has historically been one of the better slot guys in the league, and Amari, who is a much younger, albeit inexperienced version of Cobb. If you were looking for a pure slot type to mentor Amari, you couldn't really find someone better than Cobb. Cobb should also be relatively productive this season as well, provided he can stay out of the training room for the most part.