At last employer had a couple herders that could not be corrected, bad fuel economy, worse driving habits, a couple small wrecks that were excused as they would get it done regardless weather or otherwise extremes. Fast coming to a close as insurance, billable expenses and fuel costs mounting. Sucking up to the boss is less impacting where one threatened to leave, was shown the door.
No reason for Prima Donnas, they really have no place in the work force.
My retirement employer decided to move back to hiring strictly from ex Navy Nuke forces or closing nuke facilities, has worked out nearly as well as the above issue. Prima Donna, owed the positions personnel are really bad. Seems the last iterations cannot pass training exams and expected a pass as ex-Navy, when did not get it threatened legal actions and escorted off site. The ex nuke plant workers seem to understand the requirements better but again owed the positions so can retire in a few short years as been nuke workers so long. Problem is they complete the qualifications schedules become shovel leaners expecting a easy free ride to retirement or instant gratification promotions to seat shiner jobs they can hide out within.
Really sad times in the available work forces.