Both quarterbacks were locked into the top two slots of the draft. They preferred to throw to receivers they knew in a more comfortable environment. So that's what they did.
Don't expect a similar situation to play out with this year's (far less celebrated) quarterback class. Case in point:
Spoke w/ Geno Smith's rep, Jeff Nalley. Says Geno will do full workout at #NFLCombine. Good sign. Usually when one jumps in, others follow.- Gil Brandt (@Gil_Brandt) February 12, 2013
It's also been reported that USC's Matt Barkley will throw. If the top quarterbacks in this class both go full workout, others at the position surely will follow.
The decision makes sense for both players. Smith has a big arm and shouldn't have anything to hide. Barkley can use the event to convince teams of his arm strength and prove he's 100 percent healthy after a sprained shoulder prematurely ended his senior season.
Quarterbacks are using this combine to sell themselves as first-round talent. It makes sense they would take advantage of a full workout to state their case.
Follow Dan Hanzus on Twitter @DanHanzus.