I don't see the Bears skill players as anything special. Odunze was ok as a rookie. probably a bit of a disappointment, and Moore had a down season. Swift is a limited RB who rarely breaks tackles and Roshon is nothing special. I'd like to see a quality RB drafted and a speedy type WR.
Detroit prioritized both O line and offensive playmakers. The Bears should do the same.
DJ Moore is a baller. He had a down year, but then again, so did everyone. We hired Waldron whom no player who ever played for him had much good to say about him, Jaxon Smith-Ngiba being the most notable one who was basically saying he sucked and hated his scheme. So if Moore is down and Keenan Allen looked washed a year after his best per-game statistical year of his career then it's reasonable to assume that Odunze wasn't put in a position to succeed either.
Comparing apples to apples with Detroit, you've got:
St. Brown - DJ Moore. They're comparable players with St. Brown having always been a great possession/slot type guy with Moore being more of a YAC/big play guy.
Williams - Odunze. Williams had a nice year finally but Odunze figures to be much more of a well rounded receiver still with great big-play ability and massive upside. Williams obviously is the faster guy who takes tops off defenses.
LaPorta - Kmet. I'd take LaPorta over Kmet but it's not like the gulf would be huge. Everyone knows Kmet was severely underutilized this year.
Montgomery - Johnson. No one was really sad to see Montgomery go other than for sentimental reasons. He's a quality back but far from dynamic and his value is in his versatility: same for Johnson.
Gibbs - Swift. I'd certainly take Gibbs but Swift is a similar play who thrives in space and our offensive line specialized in not creating space.
Goff - Williams. No one in their right mind wouldn't take Williams' sky-high upside over Goff who's been really good in the regular season and has a storied history of choking in the playoffs and when under pressure. It's perfectly reasonable to assume that Johnson jumped at the opportunity to work with Williams cause it's not like the Bears have much else going for them by way of organizational success and so on.
The whole point is that the Lions' skill players have been put in position to succeed by Johnson's schemes and now we have Johnson to do the same for us. The missing piece is the offensive line now but we'll see what happens in the offseason. If Johnson a real deal unicorn of coaching like a Sean McVay then it would be expected to see the Bears' skill players put up much bigger numbers as the Lions have and thus not be seen anymore as "nothing special."
