[7] In 1980, Beatty accepted a job as the offensive coordinator for William Jewell College in Liberty, Missouri, where he worked until 1986.

During his tenure, William Jewell reached the NAIA Division II Football National Championship quarterfinals four times, every year between 1980 and 1983.

[9] According to multiple sources, including the Kansas City Star and The Statesman Journal, which covered the event, William Jewell lost mainly because of the team's lackluster defense;[10][11][12] as William Jewell's offensive team under Beatty scored an 86-yard touchdown in the first 19 seconds of the game.

After the game, William Jewell head coach Vic Wallace said, "We haven't played against anybody who did a better job of attacking our defense than they did".

[15] In 1997, Beatty was offered the position of head coach, which he accepted and served in the role until 2000, when he moved to Louisville, Kentucky.

[17][18] In addition to serving as Trinity's head football coach, Beatty also works as a teacher for freshmen at the school.

In late April, when Beatty starts practices for the next season, he reportedly tells his players, "You better pray hard, because you belong to me now".

From 2000 to 2003, he coached quarterback Brian Brohm, who was featured on the cover of Sports Illustrated while he was a junior in high school at Trinity and later played at Louisville, the Green Bay Packers and Buffalo Bills.

[42] Beatty coached former Trinity wide receiver James Quick, who graduated in 2013 as a U.S. Army Bowl participant and won the Kentucky Mr. Football award.

[7] According to Beatty, he and former Louisville Cardinals head football coach Bobby Petrino have a long history and friendship.

Petrino has recruited and coached multiple former Trinity players, including quarterback Brian Brohm[45][46][47] and Washington Redskins wide receiver James Quick.

Beatty also credits Petrino with helping him through some "growing pains" he experienced when he started coaching at Trinity.

Beatty also said he has been grateful Petrino has "always treated high school coaches with the utmost respect" and has been willing to swap ideas with them.