I'm sure Charlie is an exceptional player, and could probably go low on just about any course with his buddies on the weekend.
But tournament golf is just a completely different level of pressure, and I get the sense that he's been out of competitive tournament golf for so long at that level that it will take him a significant period of time to get used to it again.
He seems like a really good guy and I wish him well, but he wouldn't be the first former pro golfer turned tv analyst who couldn't make the transition back to a more stressful, competitive level.
Shooting 67 with his buddies on the weekend just ain't the same. It's a completely different environment when you're competing against players who've not taken a prolonged hiatus from competition and aren't consumed with the thoughts of just trying to keep it respectful, but actually trying to win.
He probably knew this going in, and just wanted to see if he could perhaps find his niche as a competitive player again.