Players bust after breaking out in their first season. Players bust after breaking out in their third season. For those of you railing against Beckham, were you similarly railing against Dez Bryant as a top-tier dynasty WR after his 2012 season? Call me crazy, but I think an historically great ten-game stretch is more impressive when it doesn't follow 2.5 years of mediocrity.
And while we're doing comparisons, check out Dez's and Braylon Edwards's career arcs after three seasons.
The comparison between Beckham and his current dynasty piers is not a comparison between guys who broke out in their 1st season vs. guys who broke out in their 2nd-4th season. The comparison is between a guy who broke out this year and guys who broke out 3-5 years ago and have maintained those numbers ever since.
I don't know of any correlation between a 1st year breakout player vs. a 3rd year breakout player and the likelihood of them being a bust after that. That's why I'm not willing to ignore the risk with ODB any more than I was willing to ignore it with Dez Bryant or Braylon Edwards or Calvin Johnson or Victor Cruz or any player that's ever had a good season before.