On a team with guys who liked to keep it cool but too relaxed, or hot and too indiscriminate, someone like Boyle was a breathe of fresh air.
Regarding Vlasic...maybe I'm being revisionist, but I wonder how much we overrate him. His rookie season was fantastic; then he was very good stapled next to Rob Blake. Then he faltered somewhat until he and Braun clicked. After they were broken up, Braun continue to play quite strongly while Vlasic fell off a cliff. No doubt he brought a lot to the table and was instrumental to the team's success, but he always needed a talented player who complemented him well.