Well, I don't think TPTB should have to make sure they all got competely equal screentime, but they need to do something to where the others are shown more but still leaving the most scenes to who they consider to be their "stars", if that's what they're wanting.
I took notes during NY last night to compare. I won't go into the details, but there was such a huuuge difference, & Mac was pretty centered last night. Having said that though, the other characters still got better screentime than the characters on Miami.
Before the credit intro - 4 of the main characters were shown, & 2 of them were shown twice.
In the first 15 minutes of the show- Flack had 4 scenes, Stella had 5 scenes, Mac had 5, Danny had 3, & Hawkes had 2 - just in the first 15 MINUTES!!
On 'Miami' we'd still be waiting for H to put his sunnies back on by then!
I don't, & never would, expect for them to change thier formula, but the way they do things on this show leaves very little time for the main characters. NY had a lot of scenes "solving the crime" using science & the team putting together the puzzle (that alone increased character screentime) - less time using shots of murder flashbacks, scenery shots, & interrogating potential suspects who suck up all the screentime.