Choosing a cabinet is a complicated task for a new president, and it’s easy to screw up. No one (excepting Donald Trump) gets to be president without a lot of support from within their party, and there are folks who need to be rewarded with important jobs. Similarly, it’s normal for a party to be somewhat fractured after a contested primary season, and one way to patch things back up is to offer key positions to former opponents or their supporters from different ideological wings. Neither of these approaches is optimal for getting the best people for the job. Even worse is selecting someone from the opposite party as a gesture at bipartisanship and national unity.

The most important thing to remember about cabinet positions is they head huge bureaucracies, and while a lot of the day-to-day work can be handled by deputies, it’s important that job applicants have some experience and capacity to lead large organizations. The next most important consideration is character. You don’t want someone who will embarrass you or cause scandal, and you definitely don’t want anyone who will put their own agenda and ambitions over your own. Relatedly, there are limits to how much ideological deviancy you should tolerate. If someone isn’t going to follow your vision for governance, that’s bad, but if they’re going to pursue something strongly at odds, that’s potentially disastrous. It’s also an idiotic way to devote your precious resources.

When I think about Biden’s coming cabinet, there are a couple of choices that check so many boxes that they make perfect sense. Senator Doug Jones, for example, would make an excellent Attorney General. He’s worked at the Justice Department before, he’s a star on civil rights, he has high character, and he seems in step with Biden’s overall platform. He also needs a job, having just been defeated in his bid for reelection. Finally, he’s easily confirmable and provides a little red state flavor to what will probably be a very blue state administration.

Senator Amy Klobuchar, however, strikes me as a very bad pick. She’s being considered for not only Attorney General but also Secretary of Agriculture. On the legal front, she was basically ruled out as a possible running mate in the aftermath of the George Floyd killing, precisely because she’d served as a prosecutor in Minnesota at a time when the police were avoiding accountability. More importantly, she’s known for mistreating her staff, and that’s not the kind of thing that recommends someone to head up a major agency, whether it’s the Justice Department or the Department of Agriculture.

I don’t really have strong opinions about who Biden should pick to run the Pentagon or the State and Treasury departments, but I want his choices to meet my basic test. All things being equal, I’d love for progressives to get these jobs, but just because I tend to agree with them doesn’t mean they’re a better choice if they’re not team players or have no idea how to run an organization that employs tens of thousands of people.

I don’t really see Bernie Sanders as a natural cabinet head, for example, but I’d rather he serve at Veterans’ Affairs than anywhere else because I know he’s knowledgeable about the veterans’ health system and committed to protecting and improving it. If he wants to put his nose to the grindstone and work, that’s a good place for him. If he’d prefer to push Biden to the left on economic issues, he’s probably best left out of the cabinet, for both his and Biden’s sakes.

Biden will want a diverse cabinet, and he’ll have plenty of qualified candidates to choose from. He can’t totally avoid normal considerations about uniting the party or rewarding people who worked to put him in office, but if he stays focused on finding people who will do a good job, he’ll have a good cabinet, no matter its ideological makeup.