Fantasy football sit-and-start advice should always be relative and league-dependent. Note that some players are targeted for DFS. Good luck with your Week 14 lineups!
Cousins is having easily the least efficient (6.5 YPA) season of his career since he became a full-time starter in a truly bizarre Minnesota season when they're somehow 10-2 despite a measly +10 point differential. The Vikings would be an NFL-worst 1-11 if every one-score game were flipped this season.
The Lions also have a fast-improving defense that ranks third against the pass in DVOA over the last five weeks.