The Patriots have not had a receiver with Aaron Dobson's sort of size and speed combination during either of the past two seasons.
What makes Dobson intriguing is the ability to be a factor on the perimeter and after the catch. The Patriots relied on Brandon Lloyd as a perimeter target in 2012, but Lloyd's limited run-after-catch ability limited the offensive explosiveness. While Dobson is just a sufficient make-you-miss runner, he has the acceleration, straight-line speed and contact strength to explode up the field vertically.
On paper, it would appear that Dobson has landed in a role conducive to early playing time and production.
Dobson is entering a great situation opportunity-wise, but don't forget that the New England tight ends are going to eat up a ton of targets, as will Danny Amendola, whom the Patriots signed to fill Wes Welker's considerable shoes. Even if he starts, he's likely to be the fourth option in the passing game.