Looking at this year's list of free agents, there are plenty of drool-worthy options at the top of the rankings. Gerrit Cole is one of the most valuable pitchers to become available in free agency. Anthony Rendon was a serious MVP candidate in 2019 and Stephen Strasburg isn't that far behind Cole. Zack Wheeler and Hyun-Jin Ryu would fit near the top of most major league rotations.
However, not everyone is getting a star. Some teams are running up against salary issues -- many of those limits being self-imposed, of course -- and even if the willingness is there, there are a lot more teams than there are available stars.