I thought the Singletary hire was the right call. I started to have reservations when he let Linehan out of the building, though, and bigger reservations when he hired Jimmy Raye. I didn't foresee the disaster that arose, though.
I ripped the Singletary hire a few weeks before it happened. I felt it was the right and the wrong move at the time.
It was the right move from a PR standpoint. Singletary was a big hit with the fans and the team was winning during his interim experience. The team was absolutely losing fans under Nolan, particularly with the stadium issue and the York tenure. The Singletary interim experience was a positive one. If you were posting on the ESPN board at the time, Singletary was extremely popular as HC. When I started the thread questioning his inevitable hire (I accused him of being a motivational speaker who the team would eventually tune out because he didn't bring any Xs and Os knowledge to the team) I was crucified by the vast majority of posters.
The team could not afford to not hire him and continue to struggle in mediocrity with someone else.
It was wrong because he was vastly underqualified.