A few points...
The Boeing flying programme MUST continue whilst the bus is introduced. Therefore it is not possible to remove a whole heap of Captains & FO's from the fleet at the rate required in order to crew the bus when it arrives in March. The answer is Boeing contractors (for a short term need) and direct entry bus rated guys - SFO's and CP's. Company Boeing guys are then re-trained onto the bus at a controlled pace to allow both a/c to fly fully crewed.
Finally the bus is being introduced at LGW and then an as yet undecided new European base. It is nothing to do with easy not wanting to put guys onto the bus - if bloggs lives in LPL and the bus is not based at LPL then easy can't offer them a bus course unless they transfer to a bus base.