I don't know if you follow American football but the latest (comparable) case study in professional sports is Tom Brady / Tampa Bay Bucs.
Tom Brady, a 43 year old QB left his team of ~20 years (New England Patriots), went to a below average team (Tampa Bay Bucs), and won a Super Bowl in his first year with them.
Tampa Bay basically gave him the role of general manager and allowed him to recruit whichever players we wanted to play with. They gave him the keys to the kingdom and he delivered. They are now the team to beat for the foreseeable future.
Ronaldo could be our Tom Brady. We just haven't considered that as an option yet and have not made an effort to grab him while he's out there! I would think that there isn't as much competition for his signature as we'd think. PSG? Man Utd? But even they wouldn't push that hard for a deal.
Our pitch to Ronaldo should be a 4 year deal and 150-200 million to bring in whatever players he wants to play with. If we could pull this off, we would literally go from being a club facing a painful rebuild process to THE club to watch on a global basis. Ronaldo, Kane, Son AND SISSIKO on one team? Game changing stuff.
If he brought a couple of major trophies to WHL, it would go down as one of his greatest accomplishments and cement his status as the greatest of all time.
BTW i'm half kidding about all this but at the same time, kind of serious.
P.S. Ronaldo and Nuno have the same agent...