How would you propose organizing a Perl team to take advantage of Perl's strengths, yet have room for the mentoring that a smart junior programmer needs?

Having the least experienced team member pair program with the most experienced has worked well for me, with pretty much zero drop in productivity of the team in general (over the team sans the inexperienced programmer that is.)

I could have sworn that I'd read a study that backed up my opinion with some vague attempt at research - but Google has failed me.