The Scott Mills allegations have put the BBC back on the front pages for all the wrong reasons. As the face of BBC Radio 2's breakfast show, he's one of the corporation's high profile names. Which makes his abrupt departure, facing claims over his conduct, yet another BBC crisis - the last for the current director general Tim Davie, who leaves the corporation later this week. There is perhaps an irony in that. We must make clear we don't know the details of the allegations against Scott Mills. He is the presenter of the biggest breakfast show in the country. There is no allegation of criminality. Other scandals have been criminal. News at Ten presenter Huw Edwards brought the BBC into serious disrepute by his actions. Edwards was convicted of making indecent images of children. And separately Radio 1 DJ Tim Westwood was charged with four counts of rape and nine of indecent assault and will stand trial next year. He denies the charges.…