What do you call men who are disloyal to their leader?

Men who stab their general in the back; men who do not wait for the stage to be cleared before they put the boot in by talking of needing a change, of moving away from a 'conservative Church'

Would you place these men in that category? -



Cardinal Emeritus Cormac Murphy O'Connor    



                         
                                              Bishop Kieran Conry, Arundel & Brighton


Bishop Thomas Burns, Menevia             


Would you use these words to describe the character of any of the above?

Integrity/Faithful/Loyal/Obedient/Visionary/Decent/True