So basically what he's saying is the Lions have a ten-year window to win a SuperBowl? ... rule changes, high ticket prices, escalating salaries, Thursday Nite games, arrogant/narcissistic players ... I've been losing interest for a while now ... heck, I think the only thing keeping me hanging on is MudBugs! .

The NBA is what.. 7 Nights a week? Has he predicted its demise?
MLB .. same.. No implosion.

Cuban's tweets are illogical when applied to the model of the NBA or MLB. His speculation has no basis for validity. There are plenty of models that prove just the opposite.

...except for one thing: quality of product.

Surely MLB and NBA are 6-7 days a week, but, in baseball, you can watch 2 teams play a double header and see roughly the same quality of play in back to back games. The NBA doesn't play double headers, but you can see the same quality of play from one day to the other, or every 2 days.

In football, in overtime play doesn't look as good as the previous 4 quarters. The toll it takes to play football is not something players can recover from one day to the other. Case and point, Thursday Night Football.

It is not only the physical aspect of it, is the planning and logistics of it.
NBA= 5 players on the floor, 5 positions, and more or less everyone on the floor could play any position if need be.
MLB = 9 players on the field, 9 positions, I'd argue that other than pitcher, catcher, and shortstop (maybe 3rd base) the rest of the positions any player can play it if need be.
NFL= 11 players on the field, all highly specialized, 3 distinctive units. Some positions, you may interchange, like a TE can play FB or vice versa, or a RG may be able to play C or LG, but overall, it is very defined not only by position but by body type.

So give an NFL team less time between games, it results in bad play because of the lack of time to prepare and heal from the previous games.

Of course, there's the extra days a team gets after playing on Thursday, but that does not compensate from what happened the previous week. See Saints playing home against a very physical Whiner team then having to travel to Atlanta on Thursday Night and Drew's TD streak coming to an end.

The only reason the Saints have a team is because of big corrupt government.

Let's not forget that TNF is only 2 years short of a decade old. Yes, first aired in 2006 Thursday Night Football is hardly a new or untried product. There has been nothing recent to spur Cubans rant except for 1/2 the TNF games getting played on a different network. Restraint is also evident in the fact that TNF is only 13 of the possible 21 weeks.

I know we all dislike change but MLB has gone unchanged for the most part for decades and the fan base has greatly diminished.

Could be because money has dictated championships for far too long. Some players payroll exceeds an entire teams salary, this non sense is why fans are vanishing, that and after the 1994 strike, it never recovered.

I played BB for 11 years, that Strike soured my taste for it, the 80-90 drug test failures before a player is held accountable sealed the deal.

The fact that congress gets involved in BB is just flowers on the grave.