Aaron Jones Sr. or J.K. Dobbins: Who Should You Start?

The call

• Yahoo's depth-chart reporting frames Jones and Jordan Mason as 1a/1b co-starters, with Mason possibly getting extra early-down work — that's a hard cap on Jones' touch ceiling and the reason a 55% snap share overstates his lead-back value.
• The 12% target share is the saving grace in PPR; receiving work travels regardless of who gets the goal-line carries, and a 1.5-point spread means no game script that buries him.
• Matchup is dead neutral (17 of 32 DvP, and on a zero-game sample with no confidence behind it) and the 21.5 implied team total is middling — nothing here elevates him above his RB34 consensus rank.
• Tip it to start if Mason is downgraded or you need the PPR floor at flex; tip it to sit if you have any every-down back or a pass-catching option with a better implied total on your bench.

The call

• Consensus has him at RB37 for 9.5 PPR points, which is replacement level or below in a 12-team league — you can do better on the flex.
• Kansas City's defense grades 9th of 32 in the DvP composite (32 = softest), so this is a top-third-difficult matchup for a runner who lives on ground volume.
• A 51% snap share and just a 4% target share over 10 games means he's splitting work with RJ Harvey and offers almost no PPR safety valve if the run game stalls.
• A 20.0 implied team total with a 2.5-point spread points to a tight, low-scoring script — not the blowout lead that would unlock a heavy Dobbins carry count. A confirmed Harvey absence or a bigger snap spike would flip this to a start.