In a perfect pie-in-the-sky world, Olave comes into NE, stays healthy and becomes the #1 WR for the next 5-6 years on relatively cheap money (since an extension will have low initial cap hits). Diggs then no longer has to be the top guy and can become more of a primarily slot specialist, which he has already sort of started doing, and that will probably extend his career for most or all of that same timeframe. They can extend Boutte at the same time and have their top 3 guys set for the rest of Drake's rookie contract - Olave, Boutte, Diggs, with some peppering in of Williams and Chism.
They also wouldn't be paying much overall to that group during Drake's rookie deal, meaning more money available for key free agent acquisitions. Big QB cap hits for Drake are still many years away. Josh Allen as a reference point is just now starting to really get expensive and he was drafted 7 years ago. Drake's in year 2.
Of course, making all of the above happen would be difficult and some of it comes down to luck.