Analytics to managers is like VAR to referees in my opinion. Managers are actually allowing these stats to dictate how they manage games just like referees are allowing VAR to referee the games for them. With Gray you see him making utterly bizarre substitutions in games and I think that's down to the computer/analytics telling him he needs to make subs because certain players are tiring instead of managing the game himself tactically, it's cost us quite a few points this season. I understand why it's there and why they use it but I think it's regressing our managers massively and they rely too much on it.
That's what everyone in baseball said about Bill James, before Billy Beane and Oakland used his theories and won their division with the lowest budget in the league.
I'm not saying I'm a huge fan of data analysis, but there will almost certainly be things on the field that data analysis can be used to improve. See the Midtjylland "throw-in" guy (Grønemark?) poached by Klopp at Liverpool.
My main problem with the appointment of this guy is that we'll "Hibs it" with him - not in the Gunt sense, but in the far more traditional & correct sense that we'll f**k about with him and not use him properly, meaning he won't fulfil his potential.
"Envy of the EFL" is a fine phrase, but, let's be honest, anything that's genuinely the "Envy of the EFL" goes to a Premier League club. Even the Bigot Brothers don't get a sniff, never mind us.
"Moneyball" is a great film, but it takes liberties with the truth. There's a scene in it where Oakland General Manager (DoF but with more power) Billy Beane (Brad Pitt) has got frustrated with his team manager, coaches & scouts resisting the "Data Analysis" based approach, advocated by hired geek Peter Brand.
There's no transfer window in baseball. Beane arrives for work and immediately starts calling other managers to offload the players that "Data Analysis" doesn't like. In real life, this was done over a couple of months, in "Moneyball" he does it in one morning.
The principal player victim of this is Carlos Peña. Peña is a very promising kid, regarded as a future superstar, signed as replacement for Jason Giambi - a recent American League Most Valuable Player (Footballer of the Year equivalent) who was out of contract and f**ked off to the New York Yankees. Giambi & Peña played 1st Base.
The "Data Analysis" says that Scott Hatteberg, a former Catcher, who's been unable to get a contract anywhere as a Catcher because he can't throw hard after elbow surgery, is Oakland's best "in budget" option at 1st Base, even though he's never played there

. Beane signs Hatteberg.
As General Manager (DoF) Billy Beane does not pick the team. The manager, Art Howe, picks the team and will not start Hatteberg in front of Peña.
Beane transfers Peña to Detroit.
The geek Peter Brand walks in while Beane is in the middle of this brainstorm. Brand is horrified and hesitant.
The conversation goes something like this:
Brand: "You can't do that. You can't trade Peña "
Beane: "Why not?"
Brand: "Peña's a future All Star. If this Hatteberg thing doesn't work out, this is, ehh, this is the kind of decision that could get you fired."
Beane: "On your figures, do we win more games with Hatteberg at 1st or with Peña?"
Brand: "It's close, but Hatteberg."
Beane: "Then what are we talking about? Why are we having this conversation? Do you believe in this thing or not?"
Brand: "I do."
Hatteberg goes in at 1st Base. Oakland win 20 consecutive games and win the division - as they did in real life.
This guy - Sean Richardson - has worked at Reading for 7 months

.
No way on this planet is Sir David or Malky going to be swayed by Sean Richardson if he tells one if them to sign an equivalent of Scott Hatteberg from Tranent, Truro, Trondheim or Troy.
They may or may not find his figures & stats interesting but I doubt he has a First in Economics from Yale and I doubt they'd trust him much further than they'd trust me... Or Billy... Or Ryan.