Will do.
It means feck all. Absolutely nothing. Zilch. You're playing teams to gather pre-season fitness, those teams are playing experimental sides, the atmosphere to actual games is totally different. Countless managers/teams have had excellent pre-seasons and then horrible seasons because it's a terrible indicator of how a season will actually go. It's naive foolery to somehow think that because a player is great in pre season he will match it in the season, right now Brewster is looking on for the Ballon d or by pre season standards and Greenwood will probably get top scorer .. not going to happen though, is it?
Tactics/systems/ideas that work in pre season may not work in competitive games. Van Gaal had the best pre season ever and then his philosophy went down like a led balloon when it came up against teams who weren't in pre season mode. The only time you can tell whether something is going to work is when you start playing real matches, I haven't watched/paid attention to a Spurs pre season game in years because they're totally meaningless other than a nice opportunity for fans around the world to see their heroes play/youngsters to get game time.
You're welcome to take it way more seriously than you should do, like loads of footie fans have before, that's your choice. But don't get upset when people tell you the big bad reality: never make judgements on pre season, ever. You can be playing free flowing, exciting football now and then be dire on opening day in the PL, or youn ca be terrible in pre season then free flowing when it comes to competitive games. These games are meant to build fitness for players and earn the clubs a bit of cash abroad .. nothing more, nothing less.