Lineup question

Guru, I wrote earlier asking you about Desmond Bishop.

I am going to start Wilson over Stewart but I have a flex position that I could start Paul Poz or Stewart.  In theory, I would pick LB over a saftey all day...BUT for the championship game I want to make sure I have my best lineup in.  Poz hasn't been as reliable as I would expect out of a LB1.  What are your thoughts?

My league rewards 2 per solo, 1 per assist.

It's super close, but I would go with the upside of Poz.