The North Carolina Tar Heels are heading into the summer portion of their college football offseason, and head coach Mack Brown is still on the prowl for talented defensive line players within the portal. The Tar Heels are a bit thin on the interior of the defensive line, with four players currently in rotation. So, it would make sense why Brown would like to bolster that position before the start of the 2024 season. However, as the North Carolina head coach recently explained, it is a lot easier said than done. “Well, what you do is you look for the best players available. And if somebody com…