What Newcastle's owners did was like a gamble they spent a lot of money on this transfer to get out of relegation which it's a question of whether their coaches have the ability to build chemestry on their new players so that the target to escape from regelation can be achieved.
It's an old pattern - the EPL is the league most suitable for investment and business, in other leagues you can't just pick up and buy a club - there are many restrictions and even prohibitions on such actions.
Newcastle's new owners seem to be doing the right thing - losing a year (in case of relegation from the EPL) is too expensive, so they are making a good investment to avoid it. And in any case, the further development of the club will require even more investment, so why not start doing it right now.
Look at City a few years ago before Sheikh Mansour bought it. they also need several seasons to become as strong as they are now