i dont know which is the bigger under achiever, spurs or newcastle, both badly need quality at the back
Newcastle.
They haven't won a meaning full trophy since the 50's and have been in the 2nd division a for a few years.
Spurs have only spent 1 season in the 2nd tier in 57 years and have won 10 trophies since Newcastle last won a decent trophy.
*Disclaimer*
Newcastle won the Inter to-to trophy (joint winners) a few seasons ago

and they won the Fairs Cup in 1969 when it was an invite only competition.
If Spurs were bought out by a Billionaire then that would be great.