I checked Lee Evans and Eric Moulds stats and picked out their best back to back seasons to compare them to Stevie these 2 years.
Evans(2006,07) 137 catches 2141 yards 13 TD
Moulds(1998,99) 132 2362 16
Stevie 154 2037 16
Moulds once signed a 6 year, $42 million deal with the Bills
Evans last contract with Bills was a 4 year, $37 million extension.
For what its worth, Stevie is in position to record back to back 1000 yard seasons if he has 36 yards on sunday. Moulds never had back to back 1000 yard seasons although he did have 4 of them over 7 years. Evans never had back to back 1000 yard seasons either and had only 2 total during his time with the Bills.