In Evan Moore's first game in 2009 he had terrific stats and it looked like a star was born. But the Browns just stopped trying to develop him even though, as always, they were in desperate need of strong receiving options. Reminds me of Darren Chiaverini, who played really well as a rookie in the second half of the 1999 season then somehow ended up in the "doghouse" the next training camp and was pretty much ex-communicated from the league the way a lot of White receivers mysteriously are after showing ability.
That's why I can't get too excited about Cameron. Other than the brief Mangini era, and other rare exceptions like when Joe Jurevicious played for them the final two years of his under-utilized career, the Browns have been a graveyard for White receivers and White players in general outside of quarterback and the o-line. And it's not a coincidence that they remain one of the few teams never to reach the Super Bowl and are almost never even in contention for a playoff spot even though 12 of the 32 teams make it each year.