G :
As well as a badly designed engine vibration meter display, there was also the apparently correct sequence of events when shutting down the apparently dud engine, a type and model of engine which had already failed once on another airline in a similar manner, the failure mode that hadn't been revealed in design testing, and lack of full crew resource management ( the cabin crew had been told by pax which engine had a problem, and that fact wasn't reported to the flight deck ) I'm not sure what else there was.
A full UK AAIB report about Kegworth is available at
http://www.open.gov.uk/aaib/gobme/gobmerep.htm
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I got bored with "WhoNeedsRunways"