The Jets drafted Geno Smith in the second round of the 2013 Draft and he struggled in his rookie season in the league, leading the club to sign the veteran following his release by the Philadelphia Eagles.
"In this league you've got to have two competent quarterbacks, with the rate of injuries to quarterbacks," Pennington told NJ.com. "You've got to have two quarterbacks who can win you games.
"It'll be up to Geno and to Michael to make sure that quarterback room is right and correct and that they're supporting each other, no matter who's playing. They can certainly be successful, there's no question."
The Jets finished with an 8-8 record in the 2013 season.