@Jagdish Bajaj I think it is also worth noting that not all of the faculty, staff, students, administrators, etc. of the Schools and Hospitals in University Circle live or want to live within a 5 mile radius of their respective employer. Cleveland is a very commuter friendly city with drive times from one side to another averaging around 30+/- minutes. I would estimate that 30% live nearby, 70% commute from a inner or outer ring suburb. Of course this is open to a lot of interpretation but I think my point is valid.
I also echo everyone's thoughts about street by street analysis.
Additionally, to further elaborate on your question about attracting better, higher paying tenants with suite upgrades, I would make the comment that yes these finishes help attract and retain higher rents. However, for instance, providing these higher grade finishes in a building in a rough area will still be less likely to attract the desired tenant base. Bottom line, if a higher paying tenant does not feel safe in a particular area or street, the less likely they will rent at your property. Generally my clients who want to control the rents in a certain area make a significant investment in acquiring several properties within a street or block, clean them up and then control the "look and feel" of the street resulting in higher rents with a long term hold strategy.