By Andrew Gould UMass has reportedly offered its men’s basketball head coaching job to Frank Martin. According to Jon Rothstein of CBS Sports, they “are now working through details of a potential deal.” South Carolina fired Martin after going 18-13 in his 10th season. The Gamecocks didn’t make the NCAA tournament during his tenure outside of 2017’s unexpected Final Four run. This news comes a day after Martin celebrated his 56th birthday by calling himself the “luckiest man alive” on Twitter. On Martin’s birthday, ESPN’s Pete Thamel said the coach met with UMass officials Tuesday and planned t…