Answers:
It won't be advisable to transform this executive agencies to independent agencies, because it will reduce the power of the president, and therefore reducing the ability of the president to carry on it's agenda.
ADVANTAGE OF THE TRANSFORMATION:
1) Their will discharge their duties without any political influence.
2) The president will not longer have strong influence on their decision.
3) Each head of the agency will have a specific time and duration for it plans to be achieved before the end of it's tenure.
DISADVANTAGE OF THE TRANSACTION:
1) It will develop fight for power and control in the decisions of the agency, between the president and the head of the agency.
2) it will take away harmony been seen between the president office and the agency.
3) it will reduce the power been invested in the president in carrying on a better administration.
Executive heads owe allegiance to the president, because their are appointed by the president, and can only be removed by the president. During appointment, the president usually appoints it's loyalist that is qualified to head the agency. This is why some of their heads resign, when their can no longer cope with the will of the president.