Let's take a look at the last 3 weeks of this guy's analysis (my league's scoring, of course, 0.5 PPR):

Week 13

Start:

• Philip Rivers - 16.8 pts.
• Doug Martin - 13.3 pts.
• Brandin Cooks - 11.2 pts.
• C.J. Fiedorowicz - 7.4 pts.
• New England - 10 pts.

Sit:

• Blake Bortles - 13.14 pts.
• Devontae Booker - 10.2 pts.
• Allen Robinson - 4.6 pts.
• Jack Doyle - 4 pts.
• Kansas City - 8 pts.

Week 12

Start:

• Eli Manning - 19.56 pts.
• Thomas Rawls - 3.8 pts.
• Doug Baldwin - 6.9 pts.
• Zach Ertz - 5.1 pts.
• Pittsburgh - 9 pts.

Sit:

• Philip Rivers - 20.68 pts
• Jeremy Hill - 11.2 pts.
• T.Y. Hilton - 6.9 pts.
• Martellus Bennett - 4.1 pts
• Carolina - 1 pt.

Week 11

Start:

• Tyrod Taylor - 9.54 pts.
• Dion Lewis - 6.4 pts.
• Jamison Crowder - 17.7 pts.
• Dennis Pitta - 4.5 pts.
• Arizona - 6 pts.

Sit:

• Carson Wentz - 16.92 pts.
• Jay Ajayi - 9.9 pts.
• Julian Edelman - 18.9 pts.
• Travis Kelce - 13.8 pts.
• New England - 6 pts.

The only way I can conservatively evaluate these predictions is to weigh the player that he said to start vs. the player that he said to sit, and he's only right half the time (7 of 14 performed better). So take this with a grain of salt.