It seems that Harriet Miers has tried eights cases to verdict. In her career.
There were three cases where either her client or the opposing party sought Supreme Court review. Never granted.
None of her cases dealt with Constitutional issues of any kind. Her work at the White House doesn't seem to involve the Constitution.
In my opinion, she's wildly unqualified. She may well be smart and personally honest, but the more one learns about it, the thinner her legal resume looks. There are thousands of commercial litigators out there who have roughly the same qualifications, and surely there are hundreds who have better qualifications. Personally, I think it makes a lot of sense to have someone on the Supreme Court with a commercial litigation background--they have plenty of career judges on there already. But I don't think she's the one to put on there.
Does Bush not understand that this is an important job? Does he just think he can appoint his cronies to any position?