He is getting at, having the job pull skills from lancer instead of pug. As of right now it requires 30 MRD/15 GLD, and pulls skills from pug. Not changing the job requirements at all but changing what skills we pull from, in this case we would still get GLD skills just LCN instead of PUG, so we would get keen flurry and a load of other stuff as well (listed above). Which should (in theory) increase our ability to survive.