Radio Shack has unrecognizably revamped themselves throughout their lifetime. The original name came from back when they were selling equipment catering to ham radio enthusiasts. Then, at some point, they were only selling record players and stereos in the 40's, and suddenly the staff dumbed down - my grandfather had difficulty requesting things like 3200-ohm resistors anymore, or having them made behind the counter by staff.
In the 1960's they declared bankruptcy (just like CC this morning), but a certain Charles Tandy bought them out. Tandy was a leather mogul, and the chain was temporarily renamed... wait for it... Tandy Radio Shack & Leather! Radio Shack was the place for all your leather needs! BTW, I have a genuine Radio Shack bullwhip in my attic. Too bad I never got around to asking for a ball gag and blindfold.
Then they went back to concentrating on low level electronic components. Then they switched the emphasis on to trying to sell home computers. Then they switched to almost strictly consumer electronics.
So I don't think of Radio Shack as a cockroach, whose form hasn't changed for millions of years... It's more like the Phantom, when each one dies, it passes the name and costume to someone in the next generation, who most likely has different tactics and fighting styles.