Given the haul the Titans just got from the Rams perhaps they'll give up 2 of their 3 second rounders. That would allow Mac to draft:
1st round: Reggie Ragland, ILB
2nd round: Jason Spriggs, OL
2nd round: Michael Thomas, WR
2nd round: Kyler Fackrell, OLB
3rd round: Will Redmond, CB
4th round: Jalen Mills, S
This would mean Giacommini, Harris, and possibly Gilchrist would be gone next year with cheaper, younger, faster players. I would LOVE to see what Michael Thomas could do with Decker and Marshall also on the field. He and his former classmate, Devon Smith, will eventually replace the Big 2.
Other considerations are getting a center to replace Thor and another guard to replace the Idzik players still lingering.