I'd rather not see Biden pick any D or I Senate members for his Cabinet. I'm sure there are other experienced people who could admirably perform the roles. And they don't have to be Dems, they just have to be talented, good people who buy into rebuilding the USA after the Trumpster fire.
"Travel is fatal to prejudice, bigotry and narrow-mindedness, and many of our people need it sorely on these accounts. Broad, wholesome, charitable views of men and things cannot be acquired by vegetating in one little corner of the earth all one's lifetime." - Mark Twain "Innocents Abroad"