So here are my thoughts as a Birds (not that it makes my opinion more accurate or relevant or anything, just FWIW):
Doug knows the desperation right now given the NFE East standings and that any loss ROS is essentially a death wish. Him relying on Boston Scott against the Giants wk14 was an indication of that. He’s not afraid to go with production over draft capital, status quo, etc etc.
BUT, Miles Sanders is a better running back in a vacuum. Boston Scott is easy to game plan for and part of the production in wk14 was the surprise factor there. Similar to how teams historically had to prepare for Shady/Ajayi/etc and Sproles would pop for a bunch of receptions.
I think this is clearly still Sanders’ backfield and he will have the chances to dominate wk15. If, and only if, Sanders continues to run into his own guys, miss holes, go down from a shoestring tackle, etc will Boston Scott become relevant. If the Birds are down early in this game and offense looks like ****, it wouldn’t surprise me at all for Boston to dominate second half touches.
TLDR: you’re banking on some things happening for Boston to be fantasy relevant. Basically for the Eagles to have a slow start (which is this team’s MO) and for Sanders to look mediocre to bad again (decently likely). But there will be some luck involved here for certain. I’m on the fence about starting him and will likely end up sitting him for someone like Conley/Scarbrough (if healthy).