Why are Valorant rosters so unstable?

So many roster changes happening after one event.

Unlike na orgs. apac & eu wants to win a trophy & not recycle old talent.

There are so few matches in the year so teams can't allow to "have time to grow" unless you want to sacrifice your entire year, they want to win right now and find the best possible roster.

If something is really not working, the earlier you make the change the better. especially with the big gap between first teams eliminated in kick off and first week of split 1.

because valorant changes constantly

For NA it's in their mentality, it's in DNA to not think about long term and just thinking shorttermwise, all the economy carry the stigmates of their philosophy : profit in short term or nothing. If something doesnt bring you a penny RIGHT NOW CHANGE EVERYTHING to have something that wioll bring you penny RIGHT NOW, even if thats trash on long term.

For Europe I don't know, we have this mentality but less, the shame of EU is that our team doesnt represent our country, we are the only T1 region in the world in that situation, no french speaking team, no german speaking team, no spanish speaking team, so barrier of culture into less stability I suppose.

Probably another reason i'm afraind Asia will dominate Val in the future as they did on LoL

Example: if you suck in cs at the beginning of the year, you can go to lower tier events to gain traction and then get stronger (cuz there are like 16 events in half a year), so you can see the floor, the ceiling and the level of the team for this stint. In valorant instead of 30 events you have 3 events in a year and that basically forces you to force changes