1. Where do DSP owners find qualified drivers?
Indeed and Facebook deliver the highest application volume, but referrals deliver the highest retention. The volume hierarchy runs Indeed sponsored > Facebook job ads > ZipRecruiter > Craigslist > driver referrals > local CDL and trade programs. Volume and quality move in opposite directions across that list.
Most DSPs over-rely on Indeed because it's the path of least resistance. The DSPs running the lowest cost-per-hire generate 60-70% of placements through structured referral programs — typically a $200-$500 driver referral bonus paid in two installments at 30 and 90 days to align the incentive with retention rather than placement. A referred driver who lasts 90 days is statistically far more likely to last a year than an Indeed hire who lasts 90 days.