Mocking the screens would require that there be a design. Having a design would require...well, requirements. Too few internal enterprise development environme

Mocking the screens would require that there be a design. Having a design would require...well, requirements. Too few internal enterprise development environments manage to do these things. So an enterprise product with beautiful design is at a disadvantage for all the reasons other have noted, but also because it breaks the branding of the suite of enterprise software in which it becomes embedded, makes the rest of it look bad, and draws attention to the fact that the local IT department had to go out and buy something. :-) .