I need some help w/ Dynamic named range. First time using them.

Here's the formula that I have now w/ the range being AH4:AH9.

=IF(ROWS(B$5:B5)<=$B$4,INDEX($AH$4:$AH$9,SMALL(IF(COUNTIF(INDIRECT("'"&$AH$4:$AH$9&"'!B9"),">"&$AI$4),IF(COUNTIF(INDIRECT("'"&$AH$4:$AH$9&"'!B9"),"<="&$AI$5),ROW($AH$4:$AH$9)-ROW($AH$4)+1)),ROWS(B$5:$B5))),"")

Now I'm not sure if this is how I'm suppose to do it, but let's say I want range AH4:AH30. So I highlight that and click insert, name, define and name it - Employees. Do I have to change the "Refers to" formula or keep it as is? Do I need to use an Offset formula there and if so what would that be? Finally after that is all figured out, do I change $AH$4:$AH$9 to Employees?

Just to let you know the purpose, I have 6 employees, but want my formula to change if I add employees or subtract some. The formula is used for a full year, so 365 times and I want it to update automatically if I add employees.

Any help appreciated. Am I anywhere close? Thanks.