Giving Happ a no trade clause when you already have another corner OF with one was just a stupid move by the front office. I have nothing against Happ but the Cubs have missed the mark more than once to trade him when he had good trade value on a cheaper contract. They also gave him that contract fully knowing there was a bunch of OF prospect depth they could eventually replace him with. I also think if he wasn't on the roster right now they probably would have given in and resigned Bellinger to a long term deal too. Happ is an above average OF but he's not a star nor do I think he ever will be much more than he is right now which is a solid defender and probably going to bat somewhere around .250 or about with about 15-20 HR and around 70 RBI most years.
Won't know until we see them get their shot in Chicago but I think some of the OF guys are possibly going to have higher ceilings than Happ when it comes to hitting for power. I think with Bellinger it comes down to are you committed to giving your prospects a fair shot in the majors when they are ready or are you going to commit to Belli over the long haul and start making deals from your prospect surplus. There are guys both at 1B and OF that are going to be impact players or may not cut it in the majors, we just don't know and the more guys you have in the mix at a position the less runway they are going to get when they get called up probably.
I could probably stomach Chapman on a deal no more than 3 years because he's a solid 3B glove and fills a bigger position need right now even if he may be regressing some offensively. I wouldn't be against adding another starting pitcher to the rotation either as a counter move to not being able to sign a big name bat as good pitching will usually keep you in games. Right now its Steele, Hendricks, Shota, Taillon then someone out of Assad, Wicks, Smyly, and Wesneski fighting it out for that 5th spot. I don't find anything wrong with adding another proven veteran starter to the rotation given we don't know what to expect out of that 5th spot plus both Hendricks and Taillon can be a mixed bag at times and you will have the inevitable injury at some point. Would allow Assad and Smyly to work out of the bullpen as long arms where they were effective last season and can have Wicks and Wesneski stay stretched out as a starter in Iowa to start the season as injury depth.