It would work against those with many years in. Why would management hire a "new" guy at a 10 or 15 year payscale when you could get a qualified guy on 5 year pay? Would working at Mesa or somewhere similar for 10 years make someone that valuable as a newhire into widebody longhaul flying? Besides getting one group of pilots to agree on anything is near impossible, trying 20 or so pilot groups will never happen.