You're panicking, have a little patience!
GK hasn't got worse as Wilson was generally our first choice last season, and if Moore disappoints, it's back to square 1. As for the defence, we've yet to finish our recruitment yet so we don't really know what the outlook is like there. I don't think our defensive options are as bad as a lot of people make out. We certainly need improvement.
As for point two, the box almost definitely will not be our first choice of system next season. We have 4 good quality strikers next season, but in preseason we have to field 2 sides, and we had 3 first team strikers available and a lot more midfielders. Preseason is about getting the squad match fit. We played 2 strikers against Sevilla, and judging from comments made, Waghorn has been brought in to press high up the pitch and likewise with Gyo.
It's worth noting that teams around us last season aren't doing much better with their recruitment. Derby, Blackburn are yet to make a signing and Forest have made one signing. Bristol have released 11 players and replaced them with 3. The likes of Reading, Sheff U, Barnsley and Bournemouth have either signed no one or only one player. Generally, the league will be weaker this year than last and ironically, the newly promoted teams are some of the highest recruiters this offseason. In short, it's undoubtedly a tough transfer window for everyone.
The impact of COVID breakouts in our preseason very much puts the results to secondary importance.