On the one hand, there's some concerns (especially from his coach) about arm length, so maybe moving him in to guard would be good for him. Some elite guards started as tackles and then were moved in due to short arms (see Brandon Scherff)

On the other hand... Christensen was pretty mediocre/bad early at guard last year before doing much better when he settled in at tackle. Maybe that's a function of time, maybe it's lack of familiarity with the position, maybe it's being shuttled around the OL. I'd like to see him getting consistent reps at one spot instead of playing a new spot every few weeks.