Any stat that has the word Runs in it is important. You play to score more then your Opponent, and hold them to less runs.
Pretty simple game that way.
You get 1 hit in a game in 5 at bats and it wins the game or gets you the lead, to win it take it every time.
Carter a career .271 BA with RISP, and a .258 BA with 2 outs and RISP, wasn't that bad. Reason why he probably drove in runs.
His career BA is .259. Tells me he hit better in the Clutch. Ask Mitch Williams.