College football transfer portal - Chain reaction for each defensive position

Though Nick Saban missed out on linebacker Henry To'o To'o out of high school, Alabama landed the 6-foot-2, 225-pound playmaker in the transfer portal. Dale Zanine-USA TODAY Sports

College football's transfer portal received a lot of attention from coaches building and adding to their rosters this offseason.

It's not the transfer market of old with players who might not make an immediate impact or any impact at all. Nowadays, more high-end athletes are entering the portal, some of whom are expected to play right away for their new teams.

With so much movement from roster to roster, we took a look at some of the more important offensive transfers and how their decisions impacted the school they left and the school they joined.

Last week, we broke down the key transfers for each offensive position. Now, we analyze the chain reaction that some key defensive players created through the portal, from defensive line to the secondary.