Correct me if I'm wrong, but this is the remaining eligibility for each QB right?
Morgan 2 years (RS 2017; played 6 or more games 2018, 2019, 2020; remaining eligibility 2021 + Covid year)
Annexstad 3 years (Played 6 games 2018; out 2019 w/Injury and < 6 games (if any) in 2020; remaining eligibility 2021, 2022 + Covid year)
Clark/Kramer 4 years (< 6 games in 2019 and 2020, remaining eligibility 2021, 2022, 2023 + Covid year
Kaliakmanis 4 years remaining eligibilty 2021, 2022, 2023, 2024, 2025 (if RS freshmen year)
Given this, I expect Clark or Kramer (whoever ends up 4th string) to transfer after spring ball (or after the 2021 season if not). If Morgan wins starter this year and has an amazing season (like 2019 or better) I could see him flirt with the draft or finish his eligibility. I think Annexstad is probably backup at the moment. I could see him transfer after the 2021 season if Morgan stays for 2022 and Annexstad wants to guaranteed play 2 years as starter. If Morgan leaves or Annexstad is okay with competing for starter throughout his eligibility, I expect he stays.
Whoever out of Clark/Kramer doesn't transfer I could see staying until at least after the 2022 season. At that point if Annexstad hasn't transfered I would expect a 3 way competition if Morgan didn't leave after 2021.
I guess this was a long winded way to say we have ample QB talent (though 5 scholarship QBs seems a bit crowded, hence my prediction of a Clark/Kramer transfer) and I can't wait to see how the competition shapes up this year and next.