Trade their excess pieces
Once the dust settles and Klentak finishes off any big moves the team is going to make, their are still a few excess pieces that still need to be dealt with. The two most obvious ones are Tommy Joseph and Cameron Rupp, who are both likely going to be replaced by prospects (Rhys Hoskins and Jorge Alfaro) in 2018.
In addition, while the team desperately needs some mid-rotation quality help, they have a boatload of backend starters. Zach Eflin, Ben Lively, Mark Leiter, Jake Thompson, and Nick Pivetta may not have a place on the 2018 roster. While some depth will still be needed (as this season showed) there could still be a few pitchers the team doesn’t really want/need that could be moved in some minor swaps.
These are just five moves the Phillies could make at the Winter Meetings. For all we know, Klentak could do nothing listed here and make a big splash somewhere else that no one expected.