Which club, in its right mind, would employ ten Bob, after the two disastrous seasons the rags have had with him at the helm?
Most reasonable smart, well-informed, knowledgeable club boardroom echehlons can see what a vile, dysfunctional, comical, toxic snake-pit the swamp has become in the last 10-15 years. Therefore , there is comparatively little stigma attached to being a "failed" manager of the Rags.
Moyes, van Gaal, Jose all recovered and progressed to further lucrative and (comparatively) successful appointments in football. Poundland was as successful as could be expected - winning a pot and CL qualification in his first season ; this will have been noted and offers will await him elsewhere. He knows he can sit tight and await his payout, as I'd expect any Dutchman to do.
Meanwhile, the list of candidates - with any significant level of footballing experience and achievement - to replace Poundland appears to be diminishing rapidly. Thus, the next volunteer to be persuaded will have more leverage to demand lucrative ( and less affordable) contract terms for himself, and budget assurances for transfer activity, and after another two/three seasons of mediocrity and Stg400 net spend , walk away from the ensuing wreckage with comparative immunity from blame. Thus , furthermore, continues the self-compounding death-spiral of implosion, decay and despair up to, and then past, a tipping point beyond which recovery is impossible.
Pop-corn, anyone ?