I'm not sure about best practice, but as SSIS is so heavily dependent on design-time meta data, I try to avoid run-time meta-data tweaks where I can. I don't know whether that's a good practice, or just something I've picked up through years of working with SSIS.
If you haven't even tried to resolve your issue, please don't expect the hard-working volunteers here to waste their time providing links to answers which you could easily have found yourself.