It's not a core if you don't have your best players. The Blackhawks have a core, which is their best players. Any additions need to be role players. The Cubs need a freaking stud bat, which is the core of just about any really good team, and something the Cubs do not have. When you have to add a star to be able to contend, you don't have a core in place. You have a lot of role players and some nice pieces, but not a core. How would one define a stud bat? I'm not trying to be a jerk, but let's get into specifics here. Upon what criteria does a player walk around with a "stud" label? Let me first define what it's not. Ramirez and Lee. Ramirez has been a consistent bat, and pretty close, but I think 2nd tier, especially since he misses several games year. Lee has had a couple seasons where he has been a stud, but most seasons he's just been a 2nd tier 1B (or horrible). Guys like Pujols, Gonzalez, normally David Wright, Morneau, Cabrera, Arod, Teixeira, and in the case of a surprise position like 2B, Utley. Basically, the Cubs need an excellent hitter at 1B if they want to have a realistic chance of contending. They may be better than most at a position or two but they aren't better than everybody by a wide margin. If Castro or Soto gave them 150 games of 900 OPS type production, then that could make up for the lack of 1B production. But I wouldn't count on that. They just aren't good enough at the postions they are good at to withstand not having a big bat at the one position you almost have to have a stud at.