By Jennifer Piacenti Top-tier, mid-tier and value picks for Tuesday’s MLB schedule. If you’re getting ready to set those MLB DFS lineups, here are a few players that look to be in good spots Tuesday night. PitchersTop-Tier Joe Musgrove ($11,000/$8,600): Musgrove is striking men out at a rate of 10 per nine innings, and he’s surrendered only one home run and two earned runs across his first 12.2 innings pitched. Tonight he faces the Reds, who have a 27.6% K-rate (second-most in the league) and are averaging only 3.18 runs per game. Mid-Tier Framber Valdez ($9,500/$10,200): Gone are the days tha…