Before you set your Fantasy Football Week 15 lineups or lock in your DFS picks for this weekend's games, you need to see what SportsLine's highly-rated expert Jacob Gibbs has to say.

Gibbs uses a data-driven approach that has helped him consistently provide accurate rankings at every position. He has proven to be one of the nation's most accurate Fantasy rankers in recent years -- posting the eighth-most accurate results over the past few seasons, according to Fantasy Pros.

Now, Gibbs has projected every Fantasy-relevant player's stats for Week 15. One player Gibbs is especially high on: Los Angeles Chargers rookie Quentin Johnston. Johnston is ranked as the WR55 according to the Fantasy Pros Expert Consensus, but Gibbs has him ranked as WR41 and is willing to roll with the rookie if a fill-in starter is needed for Week 15.

Gibbs also is calling for a tight end that you aren't even thinking about to finish in the top 16 at the position! This player could be the difference between winning BIG or going home with nothing.

So who are the best players to target at each position in Week 15? And which surprising TE is set to put up a monster point total? ... Join SportsLine here to see Jacob Gibbs' weekly Fantasy Football Rankings, all from one of the nation's most accurate experts!