Hmmm. I am in the camp that prefers not to count. I am also a Petite, so I know that what we want and what we get (in the stores) can be two different things.
In terms of looking at numbers, I am wondering if you pattern mix or wear wild-ish color combos (like orange + dark red + pink). Since doing one or both will stretch your possible combos, the numbers can go down.
Some of my woven tops fight with some of my toppers, either at the neckline/collar or the sleeve cut (dolman) or the length of sleeves so this limits their flexibility. OTOH, I feel that plain tanks and Ts, even the very thick ones I bought at Nordstrom, are really pushing into too casual territory for work even if covered by a jacket. And since I run cold and have flabby arms, I don't like to wear sleeveless tops even if covered by a topper.
After going for quite a few years without owning any pullovers (I live in Calif.), I bought four last year and a couple this year during NAS. I'm thinking I can wear them with and without a shirt underneath to change up the look, and one is mesh so I can wear various colored tanks or camis underneath.
I have six pullovers; that is plenty. I haven't even worn the Hinge polka dot one from NAS, so it may get returned unless I get the urge to wear it when it gets cool enough.
I only work part-time and have a home office. I only need to look office worthy once or at most twice a week. I've decided not to buy any more DCO items, wear mostly smart casual all the time, and think very long and hard before buying any more super casual Ts. At this point, my Ts outnumber my button shirts.