I'm not saying it's impossible to afford $23.5M/yr or that it is impossible to recover from trading away two 1st round picks... I'm just saying it is probably very difficult to do both.
I like your team more than I like my own team, but I still don't like this trade and I don't like the pointless trade up to draft Trubisky. If I was a Bears fan, I'd be excited about this season, but I wouldn't be excited about Pace as my GM.
Pace has basically pushed all his chips in on Trubisky. The relatively cheap rookie deal is allowing him to look like he's better at managing a cap than he is. If Trubisky succeeds* and he has to re-sign him, he's going to be in trouble unless he hits on some of his later picks because he won't have those 1st round rookie picks from 2019 and 2020 to help keep the cap under control. Like look at
this rookie contract (24th pick). Then compare that to
this free agent contract or
this or
this.
*and if he doesn't succeed, good luck signing
a free agent QB or drafting one without a 1st.