NFL teams are always searching for the next superstar quarterback. While often times successful college quarterbacks make a big splash at the professional level, it doesn't always work out that way. Here are five quarterbacks who were elite in college football but couldn't make the same impact in the NFL.Superstar college QBs who failed in the NFL#1 - Tim TebowDenver Broncos quarterback Tim TebowTim Tebow is one of the greatest college football players of all time. He won two National Championships with the Florida Gators and won a Heisman Trophy while finishing in the top five in Heisman voting for three consecutive seasons. He couldn't find the same success as a pro, starting just 14 games while completing less than 48 percent of his passes and recording a disappointing 75.3 career passer rating.Nick Adams@NickAdamsinUSATim Tebow is a once in a generation football player but a once in a lifetime human being.11:55 AM · Feb 18, 20221224145Tim Tebow is a once in a generation football player but a once in a lifetime human being.#2 - Robert Griffin IIIWashington quarterback Robert Griffin IIIRobert Griffin III, or RG3, won the Heisman Trophy in his final season at Baylor. His skill set excited Washington so much that they traded three first-round picks and a second-round pick for the right to draft him. He went on to win the Rookie of the Year award, but then everything fell apart after that. He recorded just 23 touchdown passes and 23 interceptions throughout the remainder of his career.