You could write a letter in to HR and the line manager.... I had very large problems with my management team previously, namely they were rubbish and I'm not... I was very vocal about it and when I handed in my resignation letter I stated that I was very fond of my job and my team but I could not continue to work under the current management and gave several examples in which they had totally cocked up... All examples I'd previously vocalised. It's still the same crap down there now but other people are now 'pulling a China Doll (well my real name)' as a well informed tantrum is now called and they're not standing for it... It's not much but I'm glad I did it. Their systems are ridiculous and one of my other friends pulled them to task via HR over the christmas period over a shocking email they sent out that they thought they would just get away with without anyone questioning.
Sometimes a little stirring is worth it... Probably won't change much but it wil make their lives harder! :c) (Weird thing is, these managers still bl00dy speak to me when I see them... Massochists!)