I also hate to give any type of credit to Bruce Pearl, but it is important to note he didn't have Auburn in its current state until his 4th season. I wouldn't be surprised if BU's first 3 seasons are similar to Pearl's in that he had 15, 11, and 18-win seasons before '17-18.
Bruce Pearl and Auburn is not a good example. It just proves that recruiting is a necessary but not sufficient condition. I really dislike Pearl, but he is a strong recruiter and what he is doing at Auburn is a result of recruiting over a period of years, he actually drastically elevated recruiting once he got to Auburn. What Pearl did at Auburn just proves that even with very strong recruiting, it may still take a few years to really have a very good team. So all that proves is that even IF we drastically turn it around in recruiting in the future and start recruiting like Pearl, it may still take a few more years to have a really good team.