Clark saw more playing time as a sophomore in 2007, again as a back-up to Anthony Morelli. He completed 6 passes out of 9 attempts for 131 yards and ran for 78 yards and two touchdowns. Clark saw significant playing time in the 2007 Alamo Bowl versus the Texas A&M Aggies. Penn State trailed the Aggies 14-0 in the second quarter when Paterno sent him in the game in place of Morelli to provide an offensive spark.[1] Clark responded by running for 50 yards on six carries and one touchdown. The game marked with debut of Penn State's new spread offense which replaced the traditional pocket passing- and tailback- oriented offense used by Penn State that season.[2]
Clark was named the starting quarterback for the 2008 season after a highly publicized pre-season quarterback competition with redshirt sophomore Pat Devlin.[1][3] Paterno cited Clark's game experience as a key factor in choosing him over Devlin.[3] Clark's mobility allowed Penn State to continue development of its "Spread HD" offense.[4] Clark's balanced, mistake-free performance throughout the first half of the season earned him the #6 spot on the Sporting News' list of the season's "Most Indispensable Players."[5][6] At the conclusion of the season, Clark was granted extended eligibility from the NCAA after meeting certain academic benchmarks required of "partial qualifiers."[7]
At the end of the season Clark established many Penn State records for quarterbacks. He surpassed Todd Blackledge in career touchdown passes with a total of 43. Clark also became Penn State's single season leader in yards passed with 3,003 yards and the single season leader in touchdown passes with 24. His record as a starting quarterback is 22 wins and 4 losses.[9] The losses were twice to the Iowa Hawkeyes, once to Ohio State and once to USC in the 2009 Rose Bowl.
Awards
Clark was twice named Big Ten Offensive Player of the Week during the 2008 season: October 11, for his three-touchdown game versus Wisconsin.[10] and November 22, following his career-high 341-yard, four touchdown performance in the regular season finale against Michigan State.[11] He is a semifinalist for the 2008 Maxwell[12] and Davey O'Brien awards.[13] The awards are given annually to the top collegiate football player and top quarterback, respectively. At season's end, he was named a consensus first team All-Big Ten selection.[14]
Prior to the 2009 season, Clark was selected as one of 20 Johnny Unitas Golden Arm Award candidates[15] and named to the Davey O'Brien Award watchlist.[16] He earned Big Ten Offensive Player of the Week accolades twice that season: September 4 and October 24, following wins over Akron and Michigan, respectively.[17] He was named first-team All-Big Ten after the 2009 season.
Shortly after Washington's training camp, Clark signed with the Calgary Stampeders on July 23, 2010.[21] The signing came already three games into the CFL season, and some speculated Clark would have a tough time earning a starting job over Calgary's other quarterbacks who were more familiar with the offense.[22] On May 10, 2011, the Calgary Stampeders announced that they had released Clark after just one season, in which he did not attempt any passes.[23][24]
Clark signed with the Omaha Nighthawks of the UFL for the 2011 season. He was released on September 2.[25] On November 15, 2011, Clark signed with the Chicago Rush of the AFL.[26]