We are considering that too in order to make it work with time constraints. We were walking from Leon last year, but had to cut our Camino short, so we are going back next year and trying to figure out what we can reasonably do with the time we have. I have been reading through the Bierley guide that I have from last year, checking out sections that are described as less than scenic and/or on too much near the highway, etc. It seems that the section going into Leon is kind of sketchy with the highway there, so we are considering taking the bus from Sahagun to Leon - that's about 55km, so approximately 2 days of walking. And from our last Camino, we remember the section leaving Leon was very industrial and un-scenic, so perhaps a bus or taxi out of Leon to cut out a bunch of kms. Last year we walked from Leon to Hospital de Orbigo over 2 days, but with a bit of a jump on the way out of Leon, we could do that in 1 day instead - save a little time there.
Obviously in a perfect world, we'd all have as much time as we needed, but we take what we can get and make the most out of it, right?