Posted by ESPN.com's Adam Rittenberg
Another round of Big Ten position rankings are in the books.
While I enjoy doing these and many of you read them and offer your opinions, let me remind everyone that preseason predictions are educated guesses, nothing more. Just take a look at some of my misguided musings from the preseason last year.
Iowa ranked dead last in running backs and Doak Walker Award winner Shonn Greene didn't appear in the top 10 individuals.
Penn State's Jared Odrick didn't make the top 10 defensive tackles heading into the season.
Ohio State's offensive line topped my list last year but turned into a major disappointment for the Buckeyes.
So don't take things too seriously.
That said, I'm much more informed about the league and its personnel right now than I was a year ago. There should be fewer swings and misses with these rankings.
Here's how things ended up and the top three teams for each category.
Defensive line -- Ohio State, Penn State, Iowa
Linebackers -- Penn State, Iowa, Michigan State
Secondary -- Iowa, Northwestern, Ohio State
Running backs -- Penn State, Wisconsin, Michigan
Quarterbacks -- Illinois, Minnesota, Ohio State
Offensive line -- Iowa, Ohio State, Wisconsin
Wide receivers/tight ends -- Illinois, Minnesota, Michigan State
Special teams -- Michigan State, Michigan, Penn State