Now that she's unpacked and gotten comfortable, Irene Rosenfeld, Kraft Foods Inc. CEO since June, shook up top management ranks at the Northfield, Ill.-based company with a couple of promotions and a couple of departures. She said the moves will sharpen Kraft's focus on innovation and marketing. Rick Searer, North American president of the convenient meals sector, was named president of Kraft North America Commercial to replace Dave Johnson, who is leaving the company. Paula Sneed, executive vice president of global marketing resources and initiatives, will leave the company after a transition period. She essentially is replaced by Jeri Finard, 46, who was named to the new post of chief marketing officer. She previously was executive vice president of global category development. David Brearton adds only the words "and strategy" to his title but clearly moves up: He's now executive vice president for global business services and strategy.