It looks like Barack Obama has offered Hillary Clinton the post of Secretary of State and she’s mulling over whether to take the job or not. Obama’s apparent offer makes him look magnanimous and delights Hillary Clinton’s former backers, so maybe it’s smart politics. But there are a number of good reasons why Clinton should not be secretary of state. Here are five:

1. Hillary Clinton will have her own agenda (as will her husband). She’s not a team player and will bring in a crew of cronies whose chief aim will be to promote the boss, not the administration. Obama may wake up one day and discover that Hillary has decreed a new “Clinton Doctrine” of foreign policy.

2. It would be impossible, politically, to fire Hillary. No matter what she says or does, or how insubordinate, Obama will be stuck with her as long as she wants to stay.

3. Her husband is a walking conflict of interest. Bill helps a Canadian businessman land a uranium contract in Kazakhstan, and soon afterwards the businessman contributes to the Clinton Foundation. Bill’s personal and business dealings are embarrassing enough without Hillary heading the State Department.

4. The Clinton style of management–for example, pitting one faction of staff against another–would be a disaster at the State Department. Just look at how well it worked on the campaign trail.

5. And the strongest strike of all against Hillary as secretary of state… look at who endorses her.