those were different times ;)
Back then, you could do it if you had 2 or 3 belgian star players. Nowadays, the BBBL lvl of competition is way higher. you can't be competitive with a 100% belgian team. Joe's team is the closest thing you can get to being full 100% Belgian team. He's got the best SF and PF of our NT, aswell as 2 guards who are worthy of competing for the starting job.
the thing Joe (and you before him) have proven is that investing in Belgian talent pay's off on the longrun. Joe's had an economical advantage in terms of merchandise on the whole BBBL because of his many NT players, and he kept on investing in Belgiums for the NT (he had Gilmont, then added Thys and Vercaigne. After that he took Mees, and now he's added Canipel and Backaert).
Not a single BBBL team has had so many Belgian NT players. That is why Joe has remained so good ( that and the fact that he's done clever investements on the TL).
btw, how many seasons was LoD in the BBBL. anyone know that?