Just wanted to thank everyone for their input. There's a lot of good food for thought here.
This new patrol had been assigned a troop guide, but that boy hasn't attended events in a long while. The troop is undergoing a lot of changes and there are new ASMs (I'm one of them), so the SM, who is very capable, experienced and dedicated, has his hands full.
I'm thinking it'll be helpful to have an ASM fill in as a guide and mentor for this patrol and have the PL focus on providing information to his patrol, coming up with duty rosters, encouraging advancement, etc. The ASM (well, me) can