Hypothetically speaking, let's say Tampa trades Cirelli for Byram in some kind of deal. If JBB then offloads the contracts of Sheary, Jeannot and Perbix without taking any salary back, Tampa would then have approx 19 million in space. A roster like the following could be plausible:
Duclair(4)-Point-Kuch
Hagel-Stamkos(7)-Sprong/Debrusk(4-5)
Lafferty(2ish)-Paul-Chaffee(800-900k)
Motte(1)-Glendening-Eyssimont
Goncalves/Groshev etc as the rotating F(800k)
Hedman-Raddysh
Byram-Serg(or Serg-Byram)
Lilleberg-Cernak
The cap is tight, but the numbers above are just estimates, and I'm sure JBB could make it work.