It's not a rumour at all - the shareholders forced change at the top a week ago. A new head of the business is now being appointed. See Reuters:
<a href=http://www.reuters.com/article/rbssIndustryMaterialsUtilitiesNews/idUSL20274120080220 target=_blank>http://www.reuters.com/article/rbssIndustryMaterialsUtilitiesNews/idUSL20274120080220</a>
Not sure I see why this should make it a bad time to join them though - if a new CEO improves the fortunes of the business then that's good news for bonuses, quality of assignments and retention.