There is a balance to be struck with tour length for procurement jobs. Although this example smacks of short-termism (made up word) and the lack of a coherent support strategy, the flip side is ending up with incompetent or possibly deranged acquisition desk officers who can't be moved from post. There's also the risk of getting too cozy with the contractor over a long period of years, knowing you have the rest of your career to commit malfeasance and hide your tracks before anyone rumbles you. Of course, to be fair that all comes down to personal integrity and whether or not the MoD and the Government of the day engender a sense of public duty and moral responsibility in those who serve - oh wait...