Not to downplay how good Eddie Howe is/was but to be fair after they were sold to the Saudi family, I feel like it wasn't really that shocking that they would become better. They have spent, over 70 million just for this seasons transfers so far and they may do more, over 170 million last season to get this result, and another 130 million the year before that to get out of relegation zone as well.
So when you think about it, they have spent 300 million to get the results they have gotten so far and I bet that they are going to spend another 100+ million by the looks of things as well this year. When you spend that much money, that usually returns a good result. Of course you could also be like Chelsea, so Eddie did alright.
Yeah, as 300 Million is enough for having good spot in Premier League and without these unlimited sources this was not possible even Eddie Howe is one of the best in this business, but money is also doing his tricks as well for the well end of the Newcastle United in last season now they are going to have few other plans like staying in Champions League and also having another season even this is tough job, but they can do this all after spending huge amount like these spend in last season.
As now things going most chances they will fight again for the top four instead of Champions League better spot because this is much better option and surely strengthening their squad is also important with who is coming next it's also interesting with few rumors are working around but nothing is official until now.