House Agriculture Chair (R-Pa.) announced new leadership picks Thursday with one change to last session's subcommittee chairs, who will play a key role in negotiating the trillion-dollar farm bill.

Rep. (R-Okla.), who oversaw talks on the 2014 farm bill as committee chair, replaced Rep. Jim Baird (R-Ind.) as Conservation, Research, and Biotechnology Subcommittee chair. Baird will serve as vice chair.

Rep. (R-Ga.) retained his spot as vice chair of the full committee, and chair of the Subcommittee on General Farm Commodities, Risk Management, and Credit.