4. Steve Young
It took Young three years to kickstart his NFL career. His rookie season was a mixed bag but his second year in Tampa was even worse. The Bucs only won three games with him as a starter and it looked like he didn’t have what it took to play at the highest level.

However, Young proved everybody wrong in his third season when he joined the San Francisco 49ers. He threw for 10 touchdowns with zero interceptions on his way to the Hall of Fame. Young also won three Super Bowls and was a Super Bowl MVP. The legendary quarterback picked himself up after a shocking sophomore slump.