To be fair
I just checked IDS's bio (on his own site) and he was at Sandhurst in 1975 so you can almost forgive the other tory brass for thinking he might be capable of taking on a tricky job.
Since then he has worked for GEC marconi (remember that shining example of corporate responsibility?), a property holding company and the tory party (he was leader for a while). I can't think of a CV that could raise many more red flags, why on earth was this man given a cabinet job?
And that is from his own website. When you check wikipedia it appears that he left school at fourteen and has no O-levels or degree, despite having spent a year farting about at a uni in Italy.