In the NFL, the health of an offense doesn't come through big plays or third-down conversions. Good offensive health is built through being an efficient first and second-down offense.
Since 2018, 54% of teams in the top 10 in early-down success rate also ranked in the top 10 of yards per play and scoring offense. If we filter it down to just the top five, that number rises to 68% of offenses. 66% of offenses that rank top 10 in success rate rank in the top 10 of yards per play or scoring offense as well.