A fall? These teams are in the championship though.
The reverse is also true, money is no guarantee of success....Sunderland, Ipswich, Sheffield Wed, when Man City tumbled to the third division.
"for a sustainable period," how long is a sustainable period. Crewe and Wimbledon seemed to manage long enough.
Wigan - decent period in the PL, even won the FA Cup, but eventually regressed and fell into L1, now bouncing back into the Championship, approx where they should be with 12-15k av attendances. Promotion out of L1 in-part thanks to new Bahrain owners who could get them punching above weight.
Blackpool - 1 season in the PL then six years later were in L2. An example of a team both over and underachieving but ending up back around their level as a club between 2nd and 3rd tier.
Huddersfield - 2 seasons in PL, now odds-on for relegation into L1.
Man City, before they became the richest club in the world, spent 1 season in L1 before back-to-back promotions.
Sunderland's promotion was inevitable. Sheff Wed and Ipswich will soon follow, as Wigan did before.
Bradford's return to L1 falls into the same category. Clubs can spend a % of their revenue, and most of that comes from footfall. Under-performing your budget will eventually lead to being the big fish in small pod, where you can outspend your rivals. Over-performance leads to promotions to a level where you can't compete with those around you. Mis-management can blow this advantage, good management can overcome it in the short term, but without a total change of infastructure it's (Man City) it's pretty difficult to change this.
The good new for us is, with our new owners and the new stadium on the horizon as well as a large catchment area and Wembley visits that show the potential of the club, I see no reason why Oxford United can't be one of those teams to bridge that gap. The club could look very different in the Championship with a shiny new accessible stadium, increased attendances and with the revenue going back to the club.
The irony that this sits on this threads is that, until this season, KR has made Oxford one of the most interesting teams to watch. Loads of goals, loads of technically gifted players, fair bit of needle with other clubs. It's been pretty box office, even if we have fallen short.
If we were to get someone like Leam Richardson (totally unattainable), for eg, who is having massive success with Wigan, I can't see the attendances going up as we would want/need. The football is effective but turgid. This doesn't help get new bums on new seats.