The Miami Marlins haven't found the final fit for their rotation this season, and Thursday didn't aid the effort. The Marlins designated Chris Paddack for assignment last week, and recalled the team's No. 2 prospect, Robby Snelling . After a middling ye t promising opening start, Snelling suffered a UCL sprain and was sent to the injured list. That allowed Braxton Garrett to showcase why he should stay in the major leagues, and it didn't go very well. He allowed five runs on four hits, walked five, and struck out three over 1.1 innings in his season debut in Miami's loss to Minnesota on Thursday. The 28-year-old southpaw has shone in the big leagues at times throughout his career, but didn't begin this stint on the right foot. Despite a terrible first outing, Garrett deserves another turn in the rotation. He posted a 2.30 ERA through six starts at Triple-A Jacksonville this season, including an eight-inning no-hit complete game loss.…