The Cubs have seemingly been good at getting a lot of value out of their cheap bullpen signings. Robertson, Martin, and Givens were all guys they flipped after signing to cheap contracts. But yeah, they need a SS, a 1B, at least 1 more starter in addition to Stroman, Steele, Hendricks, and Sampson/Wesneski. They'd need a lot of stuff to go right for them though. As is, they're probably a 72 win team.