How in the world do you believe this? They had the worst offense in the AL last season, and one of the worst pitching staffs. They got rid of a steady pitcher, boosted their offense some with Swisher, but they're still no best than mediocre, if that, in either pitching or offense.
And in order to compete, they'd have to compete with the four best teams in baseball. There's no way they finish ahead of either Detroit or Cleveland, barring massive injury or disease breakouts sweeping the rosters of both those teams. Minnesota and Kansas City aren't much worse than Chicago, if they are at all. The chances that Chicago finishes last are much higher than the chances that they come close to competing.
Cleveland was in the ALCS, and are pretty much the same team. Detroit is the same team, except with the addition of one of the youngest, greatest hitters in the game, and a swap of Sean Casey for Edgar Renteria, plus a pitcher who has an impressive resume, and a decent chance at being at least average if not better.
You said "not on paper." But, what else are you basing this on? Intangibles? How much intangibles can bring a weak offense and pitching staff up to the level of two of the best teams in all of baseball? If not intangibles, than what? Their only chance of competing is a miracle.