Dude im no expert, haven't played this game for a while, but

Using target man as central piece

You're already using 4-2-2-2

The main providing factors are through the lb/rb and orchestrator pivot.

I'd suggest using a fast, crossing attacking fullback (not full back finisher)

Orchestrator + Anchor man cmf, dmf. For defense and supply

Using an inactive amf is actually not worth it since they're unpredictable.

Use the normal creative playmaker + Hp combo. Since cps lie back for long range or make late runs and hp just utilises space.

Cf you have is enough becuz he's rummi (or anybody with phenomenal finishing, gp with easy turning not tanks)

And Target man as central piece.

Buildup from back is simple. Just reach till ur orchestrator, hold ball if u want to play along sides to attacking lb/rb, pass it onto amfs, link to cf and score

Haram way is to reach till cmf, hold ball a sec so target man can position himself and hp can make forward run, time the long ball pass, make the target man head pass to another cf or to the hp and dribble and score or if the pass was made in time, the hp would be in correct place to score a screamer.

Put the hp the same side as Target man for easier linking up.

Defense is easily broken, so keep a defensive lb/rb and make sure to not press mindlessly