The PGA Tour re-routed Robert Trent Jones Golf Club to accomodate luxury boxes but I don't recall it really helping, yet they've done the same with Harding Park for the President's Cup as Ron Kroichick reports:
PGA Tour officials plan only one physical change to the course for next year's event: They will build a new tee on what the public knows as No. 9 (it will be No. 18 for the Presidents Cup), stretching it to 535 yards. That hole will play as a par-5 next October; it played as a par-4 (at less than 500 yards) for the American Express Championship in 2005.
Tour officials also will "re-route" the course, so the customary closing holes - Nos. 16, 17 and 18 - will become Nos. 13, 14 and 15. (This makes it more likely matches will reach those holes.) The holes that are normally Nos. 1, 7 and 9 will become Nos. 16, 17 and 18, respectively.
Those new finishers may be the least interesting holes on the course. Something to not look forward to.