College football is deep with solid quarterbacks this upcoming season. One of those signal-callers is Notre Dame's Ian Book, who hopes to make the Fighting Irish a top 10 team in 2019.

In Athlon Sports' Top 130 Quarterback Rankings, the Notre Dame signal-caller is listed at No. 15.

Here's why: The decision by Brian Kelly and offensive coordinator Chip Long to change starting quarterbacks was a key part of Notre Dame’s run to the CFB Playoff last season. Brandon Wimbush started the first three games, but Kelly and Long decided to promote Book in an effort to spark the passing attack. Mission accomplished. The California native started nine out of the next 10 contests for the Fighting Irish and finished the year with 2,628 yards and 19 touchdowns to seven picks. Book also chipped in 280 rushing yards and four touchdowns, while completing 68.2 percent of his passes. He also went 8-1 over his nine starts, with the only defeat coming in the CFB Playoff to Clemson.

How are the rest of the starting quarterbacks in college football looking? Check out our entire Top 130 Quarterback Rankings.