After posting a now-viral clip following his departure from ESPN on Thursday, Robert Griffin III posted a heartfelt statement. The network opted to part ways with the former Heisman Trophy winner in a budget-related move, The Athletic’s Andrew Marchand reported. Griffin served as an NFL and college football analyst for ESPN, including game broadcasts alongside Bob Wischusen at the college level and time on the Monday Night Countdown panel. However, ESPN pulled him from Countdown this year after hiring Jason Kelce, and the network cut ties Thursday. Griffin expressed his gratitude for his three…