Enhance the password complexity requirements
Give the possibility for admins to increase the numbers of character set combinations. Currently it is 3, but we would like to make it 4 and we can't. We are "forced" to invest in an external party creating custom password filters - from what I am reading in TechNet forums.
Since you made this wide open statement "Enhance password complexity requirements", This could include any other requirements. They need to increase the number of characters from 14 to 25 that can be required of a user. You can already through policy make users do more than 14 but without a third party tool, there's no real way to enforce it.