Dougie Brown, the Warwickshire director of cricket, revealed afterwards that there had been another strip ready for this match but, after an injury to Barker left them a seamer short, they plumped for a pitch used twice before in Twenty20 matches and picked three spinners."It was my call," he said. "The one thing we have not been able to do regularly here is get pitches that spin and we thought this one would turn so we could get our spinners into the game but it never happened that way. The pitch just got slower and slower. To be fair, our groundsman Gary Barwell warned us that a different pitch might be better to play on. It was our decision and sometimes you just have to say you got it wrong."
I think the latter circumstance is more to do with the potential for a pitch being dangerous. The rules aren't designed just to stop boring matches.