The media are alive with the sound of commentary on the regulations that come into play today, requiring companies with over 250 employees to report on gender and pay.   Amongst the central requirements are information on mean and median pay and bonuses for men and women. But it's important that the requirements also include the duty to report on the proportions of  women and men at four different pay bands - quartiles - in the organisation.  This is at least a start on giving a profile to careers and progression, and not only to money.  It's this focus on careers - occupational progression over time, at whatever level and…