I am not at all sure who Taft would have picked for VP had he been nominated by the GOP in 1952. He had apparently promised backers he would choose MacArthur. In one brilliant timeline here, he chose McCarthy. Someone else suggested Knowland. IMO, he would have lost with any of these guys to Stevenson, and the Dems would have held onto Congress. Even against Ike, Stevenson made a credible showing, and the GOP barely won Congress.
So let's assume Stevenson wins in 1952 against a Taft-Rightwinger ticket. Who would you all suggest for the different cabinet posts? I think Averell Harriman for Sec State makes some sense, but what of Defense, Attorney General, Treasury, etc etc?