WINNIPEG—Kelvin Goertzen will become Manitoba’s 23rd premier. The governing Progressive Conservative caucus chose Goertzen on Tuesday as interim party leader to replace Premier Brian Pallister, who is scheduled to leave office Wednesday. “It was unanimously decided that Kelvin Goertzen is the best person to lead us through this interim period until a new leader is selected in the fall,” caucus chair Greg Nesbitt said in a written statement. Goertzen, a former deputy premier and minister of portfolios including health and education, declined requests for comment. He is expected to speak after being sworn in Wednesday. He will hold the title until the party’s leadership vote, which is slated for Oct. 30. Goertzen has been a legislature member since 2003, and became Pallister’s go-to person for major overhauls of government services. As health minister, he oversaw the closure of some emergency rooms in Winnipeg and a redesign of hospital services that …