The way a vlookup works is it takes whatever you put after the first open
paranthesis (i.e. =vlookup(A1) so it takes whatever is in A1, in your case
the department, and goes over to your second sheet or workbook and finds that
same value from the range that you set in the formula (Worksheet2!A1:Z25) and
then whatever it finds in the column that you list (,5,) it pulls back over
into the cell where the formula is written. You just have to make sure with
a vlookup that your range that is set in the formula starts with the matching
criteria, in this case your department, so if your department starts in
column c when you click over to worksheet2 to set your range it will start at
c1 and go to the end of the workbook and column a and b will be ignored, and
that this matching criteria comes before the information that you want to
pull over, in this case the manager or employee. I wish we could attach
examples to this thing, would make it so much easier!