James has been in his management position for many years and is comfortable there. Recently, the CEO has been applying pressure on James to get his department to become more computer literate, something that has pushed his comfort level. The CEO assigned a computer expert named Randal to James' unit to help with training. Since coming on board, Randal has been aggressive in making recommendations for technology advancement. Yesterday, James overheard Randal make a demeaning comment to one of his employees that asserted James had not learned much so far and may not be capable of managing the unit anymore. If you were James, which responses would be the most effective and least effective?