If the CAL pilots think this is a fast one do that UAL pilots can fly the 787 think again. This is a way to force a management (CAL) who was used to doing just about anything they want in spite of their contractual obligations and limitations.
Don't forget if it was the other way around management would insist upon pilots following their agreed upon obligations.
Of course when management finally agrees to the contract language and the isl do ya think some of these things will be settled?