I meant after the sign Melo. They would have to fill most of their roster with vet. min. deals. depending on how they shed salary. if they try to keep Gibson and move Dunleavy they would have $44.5 million committed to 6 players (7.4 per player, on average). If Melo were to sign, for say a 4 year 60 million dollar deal, they would have just under $60 million commited to 7 players.
Throw in the salaries of their 2 1st round picks (which can be 80% less or 120% above the rookie scale) that would put them at about $62.1 for 9 players. They would also have to fill holes at PG, in case Rose gets injured again. They would also have the M.L.E if i'm not mistaken. They may not crack $70 million though.