The Pirates’ 98-win season in 2015 was their best finish since 1991, but for the third year in a row they fell short of the St. Louis Cardinals and settled for a spot in the National League wild-card game. Did they do enough this offseason to climb even with the Cardinals and the charging Chicago Cubs? They will begin to answer that and many other questions when pitchers and catchers report Wednesday to Pirate City in Bradenton, Fla. Before the Pirates report to spring training, the Pittsburgh Post-Gazette looks at five key questions heading into the 2016 season.