Yes. Then contenders would be forced to fight each other to climb the ladder for a shot instead of clinging to a contender-belt. Right now, the system is set up so guys who should be B-level contenders can be champs for years. But this is some in a perfect world ****, boxing is hopelessly ****ed.
In ideal world yeah. For some modern boxers this had happend in tournament format: like for Usyk. Even this most likely was because just cos CW purses in WBSS1 were not bad for CW division even by U.S measurement scale and next bonus: there are not only belts on line, Ali trophy is One alone and you should not defend this one, it is big name on trophy and it is like Olympic medal. Everyone wish to have his name even remotely associated with very big iconic names in boxing and Ali name is very big name for everyone who is boxing fan and this matters for boxers cos if you do have Ali trophy, it is cool PR advantage, even maybe more than belts from 2 boxing orgs. While the same Usyk had to fight vs Glowacki who then was 2-0 in world title fights in Poland where Glowacki then was big tickets seller, not likely he had get other big names to fight vs him for other belts. Unless this Ali trophy. Still he had to fight vs Huck in Germany and had a bit close destiny with Briedis: they both had to fight vs Huck in Germany. While maybe for Usyk was less dangerous regards to judges cards: vs Briedis Huck fought in event where his company was event's co promoter. While there later he had to fight on foreign soil, most likely then cos tickets sales had been calculated as better in Riga and Moscow than in Kiev. At least WBSS didn't had used local refs and judges from these countries for Usyk's fights in WBSS. I think even Dorticos not likely had so fast next chance to get belt or Tabiti to fight for belt unless there wasn't tournament format. The same Tabiti get till title fight cos he had won 17-0-0 boxer in U.S and in WBSS 1/4 final 23-0-0 boxer in Russia. In such way he get chance to fight for IBF world title and WBSS2 final vs Dorticos. Dorticos btw even more: most likely without tournament he never had belt again. Reasons: dangerous, high KO%, not enough well marketed: without good PR and why to take this in the ring if your boxer might fight with some more well known boxers who are usually also older. with the same Briedis too the same thing, while he might be lethargic ( this is proven in some his fights ), might also happen that he is in normal or God help if in good shape and then very high risk with relatively low reward. Well, there is thing : where fight will happen, how good sales might be there and sadly pro boxing is more business than sport. It isn't olympic wrestling. Still cos this generate more $ it is considered as " more competitive " despite is IS NOT even near to this close to 50/50 fights level and sucks as hell if compare with oly wrestling it isn't enough competitive at all. Well, what we can do there. Best examples from recent fights: A.J does have in the ring 39 y.o Pulev. Makabu vs Durodola who is 40 y.o not vs other orgs champs. In fact he beated 40 y.o Durodola who when was 35 y.o had been finished by Briedis for example. So there more competitive might be Makabu fight vs 36 y.o Briedis. Ofc there if he is in normal shape, otherwise we will see hugging fest. Then there is thing that one side insists on clauses and fight isn't contracted due to clauses stuff or $ this fight might generate, place where fight will be, notice period. One side even might insist on 1 sided rematch clause even vs another title holder and if this does not agree with such stuff, then there it is what it is in reality.
I think requiring at least two ranked opponents a year to hold a belt and at least one ranked opponent to hold a mandatory would help. Make these things more like jobs you have rather than prizes you win. To hold multiple belts at once would require facing the very best or fighting more than twice a year. I've also thought that perhaps there could be mandator unifications, possibly based on one side challenging the other. Then the challenged belt holder can accept of vacate. That would be some high drama anyway.
I guess an other aspect to this is the sometimes head-scratching mandatories / rankings - most recently Yildirim. No getting away from the fact that money talks n bullsit walks n this game, so getting anything that's even remotely fair is a tall order!
