At the risk of going circular, they'd stop being 'random names' if they won a championship right? There may not be a Betts-type name in there, but Contreras, Misierowski, Yelich all either have or could put up those elite offensive seasons. And I guess your contention is that they haven't won a World Series because they aren't elite players, but at the end of the day
I was taking issue, and it might not have been you specifically, of this thought process of like, 'well we don't have a superstar so we shouldn't try to improve the team'. It just feels like self-defeating logic. We have very good and good players, and I think, offensively, within the group there's plenty of potential to raise their games and put together elite performance. PCA was 15th in fWAR last year and is 13th this year. Do you need a top 10 guy? The Yankees and Dodgers, as expected, each have a guy better than PCA this year. But it's Ben Rice and Andy Pages, not Judge and Shohei (offensively). The (comfortably) best player in baseball plays for a 23-37 team right now. So you need an elite guy AND a Cubs level supporting cast, otherwise don't bother?
There's 9 guys in a baseball lineup. Any one hitter can only take 11% of the PAs in any given game. Pile up good players and you get good offensive results, we have 8 months of the Cubs to show that, as much as people seem to hate the numbers there. Go get the best starter you can if costs you a bunch of dudes who are blocked and haven't produced at the highest level. Will it work? Probably not! 29 teams go home every year. Will it be more fun and give us a better shot? Yes.