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I partially agree with your point but because of this very reason T-20 was invented in the first place as ODI goes for 8 hours. It's not format's fault that teams are taking unnecessary tactical breaks and deliberately wasting time during death overs, broadcaster also love this as it gives them extra time slot for the ads.
Time-wasting is something that goes on in almost every game. Even in football which is absolutely everything about time we can see a lot of teams wasting time if they are in the lead. So, cricket is also going to have time resting and in a game where time is not one of the most important issues, it is going to be a lot worse.
I don’t think anyone can blame the players for anyone else for wasting time because it gives them the slight advantage that they sometimes need. It also gives time for some ads so a lot of people I did not even going to complain about it If you know what I mean.
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Skills are still required because without few skills you can't play good and entertaining cricket which is need of time and surely with this T-10 format now we are going to have bigger market and more viewer ship. Few years back most of the peoples were not sure about T-20 that it's going to be popular but right now we have nearly one dozen franchise leagues around the glob and good deserving entertainment, so hopefully this will be more after we will have one big exposure of T-10 from any big board then no-one will be able to stop this storm.
With this format ODI could be died, and we will be able to have only these two formats which are good enough for staying in good shape Test matches and T-10 hopefully someone will give his own comments about this as well.
We have seen a lot of tactics being applied in both ODI and T20 cricket which involve taking things really slow and whenever a team is in trouble they try to slow the pace so that it breaks the concentration of the opponent team. But I think with the T-10 format it is going to be really fast-paced cricket. It is going to be everything about momentum. That team which has the momentum with them is going to have better chances of winning. Because in a fast-paced environment it is really hard to stop the team which can grab momentum. And yes with this format I think the ODI is going to die. Also, the T20 format is not going to be the most popular format of cricket anymore.