Hi,
Long time reader rarely post but I can add my opinions to this.
Always manage lower league and only time i am in top leagues is if I'm promoted there or get a offer I can't refuse.
Just a few tips that have not been mentioned.
1) don't sign too many new players because
A) it will take them long enough to learn your new styles without having to learn each other
B) too many players can be a massive drain on finances an you will find it is hard to move players on.
2) be careful what clauses you agree to when you sign a player. Yearly wage rises a definite no-no in my opinion 2 years down line you could still be LL you DONT want a player on 6 - 7 k wages.
3) simple formations are the best in my opinion, don't forget your players are not work beaters some are probably even part time don't expect them to learn advanced playmaker roles etc etc.
4-4-2 or 4-5-1 seem to work best.
5) or perhaps 4b) stick with maybe two tactics don't keep swapping and changing it never helps
6) if you don't get mega fed up!!!! Attend press conferences and big up the game it will raise moral and it will have a positive affect on the game.
There's a few more but you have managed Newcastle!!!! I'm sure you can manage LL you don't need my tips. Pardew wouldn't take advise from me
unfortunately haha
In all seriousness I hope this helps
And I want to apologise if anything is spelt wrong or doesn't make sense I'm on my phone and I'm dyslexic haha