If you just want to cherry pick (pardon the pun) those three clubs as an example then sure. If you also take into account Wolves, West Ham, Burnley, Leicester, Luton, Sheff Utd, Watford, Norwich, West Brom, Huddersfield, Cardiff, Swansea, Stoke, Boro, QPR, Wigan, Bolton, Brum and probably a couple of others who've all dropped out the PL in the last 10-12 years then actually staying in the PL at all, let alone competitively in the top half, is notoriously difficult.