I don't know if Bailey starts Day 1, but one thing is for sure; if JG keeps playing like this, we'll have a real QB competition for 2020. It will be very interesting.
Kasim Hill. Dual threat type QB with experience, but inaccurate passer at Maryland.
JT Shrout. Gunslinger with probably the strongest arm on the team, but also had accuracy issues in high school. Can he get those issues fixed and become the NFL-type QB that a lot of scouts have been drooling over? We'll see.
Brian Maurer. Played for a terrible team in high school (went 2-8 last season), but led a prolific offense, and was almost a 1-man show. Good arm, good scrambler. Very underrated by the recruiting services.
Harrison Bailey. Strong arm, accurate QB. Will be the youngest, but could be the best of the bunch.
The crazy thing is that all 4 (plus JG) have a shot at starting next year. If Bailey were not a true Freshman, I'd say he would be the odds-on favorite; and he might still be. But I think with a year of development under his belt, Maurer will be much better; sort of like how Season 2 Josh Dobbs was much better than Season 1 Josh Dobbs. And while everyone will count out JG, I wouldn't say it's a done-deal, but he's going to have to start playing much better than he did versus BYU, or there's no real argument for keeping him as starter.
If I were a betting man, I do think Bailey is the favorite in 2020, but only slightly so.