Tactical:

High yield three can be trained by a tactical captain

Engineering

The engineering teams’ share a cool down one is a little less than the used one
Extend shields are to a friend’s advantage and your shields weaken because you’re reinforcing your friends

Science:

Consider replacing with polarize hull to break tractor beams my own opinion.

Weapons:

You need to replace all your weapons with Mark XI Very Rear (for the best damage)
Dual beam banks have a very narrow firing arc.
Torpedoes share the same cool down so their no real help but are taking up space, consider replacing 1 dual beam bank and two torpedoes (leaving one forward and one aft) with, additional beam arrays this will allow you to broadside a target more effectively and give you a 360 firing arc.

Shields:

If you have a Mark XI shield your fine there it has the highest capacity of all the shields in game

Deflector:

The deflector is fine

Impulse Engines:

The best impulse engine for space combat is: Aegis, the best for sector space travel is the Retro Borg tech engine

Eng Console:

The Accelerators are good no problems there (I use 4 on my excelsior and it turns like an escort which is good but at the expense of hull armour )
Consider going down to one EPS manifold cause theirs a engineering officer ability that does it also
And consider putting some armour on for protection

Sci Console:

The Assimilated console has limited usefulness at best without the other parts
Saucer Sep, nothing wrong with that
Bio function Monitor, nothing wrong with that either

Tactical Console:

2x Phaser Relay MK XII those are very good but ONLY work if your using phaser based weapons

Note;

As much as having the proper equipment on your ship it also depends on your skill tree, but there I can’t help you because I am a ship tech guy not a build guy..