With spring practices beginning across the Big Ten, we're taking a look at some of the key players and position groups that could shape the division races in 2017. Today, we'll examine the biggest strengths of each team in each division. Check back Thursday for a look at each team's biggest weakness.

Here's a look at the East:

Indiana: The back seven. Yes, the Hoosiers are best known for their offensive prowess, but their biggest strength might actually lie on the other side of the ball. Tegray Scales is back to lead the linebacker group after finishing with an FBS-best 23.5 tackles for loss last season. Marcelino Ball is also a force as a hybrid defensive back after recording 75 tackles as a true freshman. Throw in returning veterans and head coach Tom Allen's 4-2-5 scheme, and this might be the basis for Indiana's success in 2017.

Maryland: The running backs. The Terrapins quietly finished fourth in the Big Ten in rushing last season at nearly 200 yards per game. The potential is there for more in 2017. Ty Johnson ran for 1,004 yards on an insane 9.1 yards per carry as a sophomore. He'll be rejoined by Lorenzo Harrison, who averaged 7.2 yards per carry in nine games before earning a suspension. Maryland is bursting with big playmakers in the backfield.

Michigan: Quarterback depth. After losing a boatload of valuable seniors and sending 14 players to the NFL combine, the Wolverines have question marks going into the spring. Quarterback isn't really one of them. Wilton Speight played well in his first year as a starter, completing 61.6 percent of his passes and finishing with an 18-7 touchdown-to-interception ratio. He has a big edge to keep the job, but he also has talented youngsters Brandon Peters and incoming freshman Dylan McCaffrey behind him, along with veteran John O'Korn.

Michigan State: The linebacker group. Despite the loss of leader Riley Bullough, the Spartans should be able to count on this position group as an anchor in 2017. Jon Reschke and Chris Frey have lots of experience, and Andrew Dowell is on the rise. Yet another Bullough brother, Byron, will be pushing for playing time as well.

Ohio State: The pass-rush. Nick Bosa would start for just about any team in the Big Ten, and quite likely in America. But his playing time is in question for the Buckeyes, who bring back starting defensive ends Tyquan Lewis -- the league's defensive lineman of the year in 2016 -- and Sam Hubbard. That's a crazy amount of talent coming off the edge, and it doesn't even include senior Jalyn Holmes or blue-chip signee Chase Young.

Penn State: The offensive backfield. Running back Saquon Barkley and quarterback Trace McSorley ranked 1-2 in our list of the top 25 returning Big Ten players last month. So it's kind of a nice advantage to have them in the same backfield, and it makes the Nittany Lions' run-pass option plays even more devastating. Miles Sanders is an excellent backup choice and change-of-pace guy behind Barkley, too.

Rutgers: The kick-return game. So the Scarlet Knights didn't have any discernible strengths during a miserable 2016 campaign, but at least Janarion Grant is back after suffering a season-ending injury early last fall. Assuming he's healthy, he should reclaim his reputation as one of the top return men in the country. He has eight career combined kick and punt return scores, tied for the most in FBS history.