MINNEAPOLIS — Fastened to the wall inside Flip Saunders’ Target Center office, there’s a list of every available NBA free agent. Each name is ranked according by position. When any player in the league gets cut, his name gets added to the list, and the front office re-ranks everyone at that player’s spot.But Saunders isn’t in there playing mental chess this afternoon.Instead, the Timberwolves head coach and president of basketball operations is in the basement. With curtains drawn around the team’s Lifetime Fitness practice facility — it’ll move into its own workout space across the street after the season, a project spearheaded by Saunders himself — he’s watching David Adelman feed Robbie Hummel passes so the injured forward can work on shooting with his left (off) hand. Soon, Saunders will check up with his son Ryan on how his film study session with Ricky Rubio went (at 10-15 minutes, it probably wasn’t long enough for Rubio’s liking). There’s Sam Mitchell having another heart-to-heart with prized rookie Andrew Wiggins. Calvin Booth teaching Nikola Pekovic and Gorgui Dieng some post moves. Mike Penberthy meticulously honing Chase Budinger’s 3-point shot. Soon, Saunders will touch base with Newton and see what kind of trade…