There absolutely has to be wholesale change because this this is as predictable as it is dogshit.
There needs to be change with the County Championship: it doesn't necessarily need more matches, but it does need better matches.
There needs to be a change of captaincy, because every player who plays like this needs an absolute bollocking off the captain and if they were getting that then they wouldn't still be batting like idiots.
There needs to be a change of coaching (not just of coach) because every player who has been anywhere near England or the Lions has regressed. Anyone remember Adam Riley?
There needs to be an overwhelming change of attitude, because you have to earn the right to play like this.
So England has a really good ODI team for now - that's great! Continue investing in that, but it didn't have to come at the expense of the Test team at all. In a side with Burns, Sibley, Denly/Northeast, Root, Pope, Stokes, Foakes, Archer, Leach, Broad, Anderson only three of those cross over with the ODI set-up. AND THAT IS OKAY.