I remember an article ~10 years ago by the now disgraced Jonah Keri talking about the Braves. He compared their operating model to hara hachi bun, which is a Japanese teaching to eat only until you're 80% full. The idea being that you're satisfied at that point but avoid gluttony. From a baseball standpoint, if you're adding 10 WAR in an offseason, those first 7-8 are generally a lot less expensive than those last 2-3. By not going that last mile you avoid bad contracts, trading prospects you shouldn't, etc.
That's something the Braves could do (and did pre Anthopolous). It's how the Dodgers operated before this winter. I think it's a good operating model....when you're mostly in charge of your division. Maybe the Cubs on the backs of the army of kids win the division by like 8 games, but it feels like the team was a move short this winter. Last year it felt like they were a move short and low and behold they missed a playoff spot by a game. It's a risky proposition when your existing team isn't good enough to give you a ton of margin for error.