FRISCO -- Rookie quarterbacks aren't supposed to have the success Dak Prescott did in 2016, especially not ones drafted in the fourth round.

Some naysayers might say he was just a product of a talented offense. Others might point to a combination of things, highlighted by his ability, knowledge for the game and leadership skills.

Either way, when the conversation moves to his second season, the words "sophomore slump" are often mentioned. Names such as Robert Griffin III and Sam Bradford often follow.

Prescott explained Wednesday why he's not worried about taking a step back.

"For me, it's just continuing to work," Prescott said. "I know what I've done to get in this position. I know what it takes to continue to get better for me."

The Cowboys were one of the NFL's best teams at minimizing turnovers last season. One of Prescott's biggest contributions was that he took care of the football as well as a seasoned veteran, throwing only four interceptions. No quarterback with at least 450 pass attempts had fewer.

It wouldn't be alarming if that number increased slightly in Prescott's second season, but offensive coordinator Scott Linehan said he's not concerned about a potential sophomore slump.

"I think that would be true for any position if you started getting comfortable," Linehan said. "I don't think that quarterback is different than any other position."