Arkansas has its next head coach. On Sunday, ESPN’s Pete Thamel reported the program is signing Kentucky’s John Calipari to a five-year deal as its next head coach. Calipari is coming off a disappointing postseason. Kentucky fell in its opening matchup against Texas A&M in the SEC Tournament. The team’s nightmare scenario only worsened when it lost to No. 14 seed Oakland in the first round of the NCAA Tournament. Kentucky has now only won one game in the Big Dance in the past five seasons. Despite Calipari’s recent struggles, he boasts a stunning résumé. In Calipari’s 15 seasons at the helm of…