Whenever the Diamond Heels record their final out of the season, Kaleb Cost will stop hitting baseballs and start hitting wide receivers. UNC’s freshman outfielder is also a defensive back for head coach Mack Brown and the football team. So when springtime rolled around, Cost’s workload increased: not only would baseball season be in full swing, but spring football practice would be literally just across the street. For Cost, who started for the Tar Heels in the Duke’s Mayo Bowl last December and who figures to compete for a starting job in the fall, it’s a critical stage in his career. Now throw this into the mix: not only do Cost, Brown, and baseball head coach Scott Forbes have to work with Cost’s class schedule, but they also have to maneuver around an NCAA rule, one which states student-athletes can only work for their programs for a maximum of 20 hours each week. Normally, this isn’t an issue. But for a two-sport athlete like Cost, the limit isn’t flexible. He must crunch both...