The NFL's most impressive rookies

Rookie wide receivers Mike Evans and Odell Beckham Jr. have had standout seasons. Getty Images

ESPN Insider Adam Schefter hits five of the biggest questions around the league once a week during the NFL preseason and regular season, and sporadically throughout the playoffs and offseason. Have a query of your own? Submit it here.

Do you think the Denver Broncos are concerned with the lack of a passing attack recently?

They look like they're shifting their offense, trying to run the ball more and become more ground-oriented. So much has ridden on Peyton Manning's shoulders for so long that it looks like the Broncos are trying to make life a little easier for him down the stretch. Manning can't do everything -- and lately, he hasn't. When Julius Thomas and Demaryius Thomas get healthy, if Denver happens to play indoors or in better weather conditions, it would be a surprise if we were still talking about Denver's lack of a passing attack.

Which rookies have impressed coaches around the league the most this season?

It's hard to go against so many of the rookie wide receivers,