31.   Boyle contended that under a new system of work rules, he had succeeded in expelling the mob.

32.   But CUNY officials and others say that such a sharp decline can be explained only by the new work rules.

33.   But by European standards, analysts said, it could signal the beginning of a crack in the consensus about work rules and job security.

34.   But in general, the web of work rules and job protections Giuliani railed against as a candidate remains intact.

35.   But management labor lawyers disputed the view that a league needs a sports antitrust exemption to implement new work rules unilaterally.

36.   But more steps are needed to negotiate an end to costly work rules.

37.   But the players expect the owners to implement new work rules after the World Series.

38.   But the work rules prohibit any abuse.

39.   But they did say that Saturn should stop linking pay to productivity and should adopt many work rules from other GM factories.

40.   But they have offered less generous benefits and do not have the complicated work rules that make it hard for the Detroit automakers to shift workers among tasks.