IMO, he brought in the best recruits at QB that he could get. And why wouldn't he? Even if he thought that Lanning would be the likely starter.
Lanning is the ONLY QB on the roster with any experience. Besides Lanning, we have a RS Freshman DeLira.
Kempt was an Oregon State signee. Redshirted one year and a squad member one year. Did not play in any games. Went to Hutchinson JC for one year. Accepted a preferred walkon at Iowa State.
Do you honestly think the coaching staff is projecting Kempt to beat out Lanning? Seriously doubt it. IMO, they are giving a guy a shot with a walkon offer to see what happens. Maybe he can surprise and you risk nothing.
As far as Jacob Park is concerned, he was rated higher. And has 3 years to play 3. But he hasn't played football in over a year and a half. IMO, he has talent and fits roster in terms of eligibility. Thinking could be that he could develop into a backup at this time and has enough talent to contend at some point for a starting job.
IMO, Campbell likely saw some good things in Lanning's play last fall. Because there were some good things. Lanning also needs more development. No doubt. But I am also sure that Campbell considered Lanning to be the #1 QB and still does. Which is far better than having a QB with absolutely no experience at all. And Park and Kempt have absolutely no experience at all. Just like DeLira, Noland have no experience.