Phil Mickelson has an unusual set configuration today in the final round at Colonial: a driver, no fairway woods, no  hybrids, five wedges.

Today is the first day I've been able to catch any of the Colonial broadcast, so I don't know if Mickelson has had this configuration all week. Depending on your point of view, it's a daring or dumb way to fill out the bag.

Colonial is not a driving course. It's not a bomb-and-gouge course. It's a tight, tree-lined course. As Tiger Woods explained a few years ago when talking about why some of the bigger hitters don't like to play Colonial, "You can't hit driver there."

Even many of the longer holes are doglegs that call for careful placement of the tee ball. It would almost seem to make more sense for Phil to have dropped the driver and kept 3-wood as his only wood or hybrid. At least that club is a multi-tasker.

But even if you take the position that this is a dumb set configuration, Mickelson is certainly quite capable of winning anyway (he's tied for the lead as I write this). So far, however, he hasn't been hitting the driver very well, and has had to use 3-iron off a couple tees where he might would have preferred something a little longer.

Of course, another way of looking at it is that if Colonial is a course where "you can' hit driver," and where you play for position off the tee, then a 3-iron may be plenty off most tees for someone like Phil. But then you darn well better hit your driver good on those few holes where it's your only option.