This thread has taken an interesting turn, thanks - I believe - to Roxane!
Most 'programs' don't succeed because management aren't behind it (for very long). We've all seen this in one way or another over the years.
Internal Audits simply must be made relevant to the performance of the business, including those concerns of the customer and regulatory compliance. This requires a whole different approach to the planning, scheduling and preparation of audits than is done by external auditors (simply because they can't be that focussed) Hence doing one or two 'mega-audits' a year is totally incorrect - even if it did get you registered!
In my estimation, internal audits should take into consideration (primarily)business performance issues in their scheduling - not abitrary issues like 'covering all the elements every year', all procedures, or similar. In much the same way, a rigid 12 month calendar of audits - which is then frequently adjusted - is a sure way to confuse management and make it appear that the audit manager isn't in control!
Rarely, in my 25+ years of experience, did an internal auditor ever sit down and plan/prepare audits with management, using language they understand - ISO terminology is too foreign - or focussing on things which they (management) are measured on, held accountable for and, hence, loose sleep over.
Of course, none of these things is taught (effectively) in any auditor course (especially the accredited ones!). Maybe my friend Helmut's class does!
It's very easy to read here, in many Cove posts, what issues auditors 'go after' - nothing that management get excited over, quite frankly! (viz document control, training records, calibration stickers etc.)
I'm going to suggest that where management claim to get benefit, their comments are mainly derived from their personal 'feel good' that they aren't responsible when the CB auditor come around, that they can claim in front of peers to be 'improving' or just to 'save face' - rather than anything else.
It's my firm belief that internal audits need a step change in their performance (with all that entails, training, implementation, etc.) and should be modelled along the lines of a (mini) 6 Sigma Project, with the auditors as the 'Green Belts'. When audits/auditors start delivering $$$ savings and assist in actual measureable improvements, rather than 'feel good', they will have arrived!