Colorado transfer cornerback Cormani McClain is pushing back against rumors that his grades played a part in his decision to move on from the team. The former Buffalo addressed the topic in a YouTube video titled “Next Step” on his channel. McClain was adamant that he maintained good grades during his freshman year at Colorado, saying he “got As and Bs.” The 6-foot-1 defensive back also made it clear that his focus remains on his studies as he looks to find a new school to call home. “I would say staying on top of school (is my biggest emphasis right now),” McClain said. “You’ve gotta make sur…