Smdh, when this is your proverbial golden bullet for your argument, you know you're grasping at straws.
18 million is fairly run of the mill guaranteed money for a mid-level stop gap QB. We talk a lot of crap about Glennon, but he was given the same garbage situation he was thrown into as Trubisky. Virtually no legitimate receivers and an offensive scheme as predictable as a dog shitting in the backyard. And the fact is that his contract was structured so that he was a 1-year holdover for Trubisky.
You say how the Bears "wasted" money, but keep in mind that Glennon wasn't given an albatross contract that restricted the franchise for years to come like his predecessor did with Cutler.
And as for the idea of spending it on a quality WR, which one? Hmmm? Which quality receiver would you be referring to? Because the best WR on the market in 2017 was, guess who? Alshon Jeffery. A guy who the Bears tried to re-sign but who chose to decline and signed somewhere else for less money. The next best guy was Terrelle Pryor, who up until 2016 had 2 receptions. Yeah, I can't necessarily blame Pace for not taking a chance and offering a guy with 1 full year of experience as a receiver a big contract. The rest of the guys were all players I wouldn't throw a major contract at. Those were Eric Decker, Pierre Garcon, Jeremy Maclin and DeSean Jackson, and as of now, they're all on the wrong side of 30, so doesn't exactly help the youth movement we're shooting for.
Overall, this just further clarifies the holes in your argument.