There aready exists an answer to the question--TPC Boston. It was not too llong ago that this was an awkward Ed Seay course under the headline of Arnold Palmer that considered a slogfest. Supposedly, only a couple of greens were rebuilt entirely, but quite a few of the greens were cut in size and reshaped with strategic bunkering and hazard changes. Also, the fairway bunkers were added an eliminated to create desired angles of attack.
I played Cog Hill quite a few times and never though poorly of the course, but always thought it was simply hard. Post Rees, I played it once and felt clausterphobic from the narrowness. In addition, the bunkers are simply deep, numerous, and repetitve. Qiute simply, a good course became poor. I think the course could be great if it received the attention TPC Boston received,.