In just the span of a year, second-year Jaguars quarterback has gone from all-bust potential to undisputed leader of the Jaguars.The former No. 1 overall pick out of Clemson has Jacksonville on the verge of a potential franchise-defining victory, with the 4-seed Jaguars to take on Patrick Mahomes and the Chiefs in the AFC divisional round.Lawrence's boom-or-bust potential was on full display in Jacksonville's thrilling come-from-behind victory vs. the Chargers, against whom he threw Sean Taylor Jersey four first-half interceptions before leading five straight scoring drives (and throwing four touchdown pa ses) to lead the Jags Anthony Mack Jersey to a 32-31 victory.The victory also showcased coach Doug Pederson's trust in his young quarterback: trust enough to keep him in the game after that dismal first half, and trust he could bring the Jaguars back into the game. Lawrence paid it off in spades with one of the most iconic comeback victories in NFL playoff history.MORE: Pederson's decision to keep Lawrence in the game likely means nothing short of injury will bring out the signal-caller's backup against the Chiefs or, perhaps, later on in the NFL playoffs. Should that happen, The Sporting News has everything you need to know about the Jaguars' quarterback depth chart: Lawrence's backup is C.J Brad Kaaya Jersey . Beathard, in his sixth season in the NFL and second in Jacksonville.Beathard, a third-round pick and the No. 104 overall selection of the 2017 NFL Draft out of Iowa, has not played much during his Jacksonville stint. He has appeared in just six games (two in 2021, four in 2022) and has completed only 9 of 13 pa ses for 68 yards and an interception in Duke Johnson Jersey that time.Prior to his joining the Jaguars, Beathard spent three seasons in San Francisco, the team that drafted him. He had modest stats playing for the 49ers, which gave him ample opportunity in 2017 and 2018 to prove himself as starter quality.He started five games in each of those seasons, going 1-4 in 2017 and 0-5 the following season. He only started two games the following season, going 1-1 in those contests. He completed 291 of 497 pa ses (58.6) for 3,469 yards and 18 touchdowns to 13 interceptions in three seasons there.MORE: The Jaguars have four quarterbacks on their roster, but only Lawrence and Beathard are included on the team's depth chart.RankPlayer1Trevor Lawrence2C.J. BeathardAlso Dominic Proctor Jersey listed on the team's roster is Nathan Rourke on a reserve/future contract, meaning he will be a part of the team's offseason program and have a roster spot at the start of the 2023 season. Jacksonville signed him from the CFL's BC Lions.The only other quarterback listed on the Jaguars' roster is E.J. Perry, an undrafted rookie out of Brown.