Broad, I suppose. With Nathan the Twins were getting a 29 year old that SF had converted to the pen just the year before and was serving as the 7th inning guy in a stacked bullpen. He notched 1 lone save as a Giant, his rookie season, then boom, 44 his first year with the Twins. Aguilera was used only as a starter his first season with the Twins before moving to the pen season 2, although the Mets may have started that transition when the Twins acquired him. "From within" meaning they were here, acquired with multiple other pieces in big trades in which they weren't the principal piece, and they had very little to no history of being a big time closer.