https://www.pro-football-reference.com/players/B/BortBl00.htm
Bortles didn't have a great year last year, but would be the perfect backup QB. Check out his career stats.
For the last three years, he had arguably the worst group of WRs in the NFL. The one year he had a legit number one WR and he threw 35 TDs. He's also never had a great offensive coach.
For the Rams, he'd have a mixture of his WRs from 2015, his running game from 2017, the best coach and most likely the best OL he's ever had.
In other words - we would be better in every facet around him than the team he was on when he threw 35 TDs. IMO he would instantly become the best backup QB in the NFL, and if the unspeakable should happen, I would still feel like we could win.