The 2013 NFL draft was ripe with talent on the defensive side of the ball, and there are quite a few guys picked that should go on to be perennial Pro Bowlers. But even the best defensive players may not start lighting up the stat sheet until the end of their first season, or even later. JJ Watt and Jason Pierre-Paul didn’t take the league by storm until their second year, Ronde Barber didn’t truly break out until his fourth season in the league, and we’re still waiting on Vernon Gholston to show us what he’s got.

From a fantasy perspective, this year’s draft doesn’t have anyone who is likely to match Luke Kuechly’s LB1 output in 2012. In fact, we’ll be lucky to see something like Vontaze Burfict’s LB24 finish. The top talent is probably at Defensive Tackle, and while the big boys are vital to a team’s defensive success, they don’t tend to have much of an impact in IDP leagues that don’t require their presence.

But that doesn’t mean we won’t have any impact rookies this year, it just may take some time to figure out who they are. Here is a look at each position and how relevant the rookies will be in 2013 IDP leagues.