what shall I do?

in these days, I researched professors who study on algorithm or theoretical computer science in a few schools. This is not a full list but, I can catch something. most of them are from top4~top 10 schools.
Some of them are from lower level schools, but, the position is not so many.
Brief list is as below.

University of California, Riverside
Warsaw University
UMN
Purdue
Princeton

George Mason
U of Wisconsin
UIUC
TAMU

University of Iowa
? (Finnish?)
Virginia Tech
Duke

University of Connecticut
MIT
CUNY
SUNY
GIT
Harvard
Brown
Syracuse, Math
UMD

Ohio State University
UIUC

University of illinois at Chicago
UMN

Syracuse 0

University of Santa Cruz
U of Toronto
Stanford

Case Western Reserve University
Cambridge
Rutgers

University of Oregon
MIT
Royal Institute of Technology, Stokholm
U of Kansas
U of Toronto

Vanderbilt
Princeton

University of Pittsburgh
CMU
U of Wisconsin
MSU

University of Delaware
UIUC, Math
MIT

University of Florida
Cornell
U of Wisconsin
UIUC
UMN
UIUC

Thus, I decided not to study on algorithms any more. If I feel interesting in algorithm or theoretical comptuer science, it would be just 'one of the interests.' not main research topic. Most of all, I have already quite experienced in computer system fields. I don't have to thrash my experiences.