Use others mistakes to your advantage by, firstly concentrating on your own standards and making sure you don't fall into the same chapter as those who are poor at the job.
Also be careful what you say, one day someone will if your good enough try to say your methods and work is rubbish. The you have the rest of your career trying to do it right even if your were in the first place.
Make a mental note of whom does what and don't fall into the trap of he said she said stuff.
And always even when there wrong, customer is KING!
