Sometimes, trying hard just isn't enough. Having been hit with a fine in 2005 for transaction reporting failings, UBS initiated a series of reviews, remediation exercises, internal audits, as well as external reviews over the subsequent decade. 

Yet, the firm is still grappling with trying to eradicate the 42 errors which the FCA is now penalising them for.  When the problem is complex, you really need to get to the root causes.