I get where your coming from, but the strategy of not paying for average to above average QB's and drafting rookie QB's until you find one that hits has failed at a high rate.
A team can pay for an average to above average QB and have winning records with them, while still also being able to get an above average to elite QB in the draft, without having a pick in the top 10 of the draft.
Compare the success rate of QB's taken in the top 10 to those taken outside of the top ten. The QB's in the top 10 have a much lower per capita success rate than those who are taken later.
Take it a step farther. Look at the successful QB's taken in the top 10 by the team that originally held that spot versus those taken by someone who traded up into that spot. For instance, Mahommes was drafted at number 10, but the Cheifs traded up to get him.
A team does not have to be have a top 10 draft spot to be able to draft a great QB. Drew Brees, Tom Brady, Aaoron Rodgers were all taken outside the top 10. A lot of the most successful QB's were drafted somewhere from the 10th pick of the first round to the top of the second round. Jalen Hurts was drafted in the second round. Lamar Jackson was taken with the 32nd pick.
A team doesn't have to have a bad record to have a good chance at drafting a good QB. What they have to have is good scouting to identify good QB's in the draft and good coaching once they're drafted. And a front office willing to trade up to get their targeted player.