No it isn't. There's only one paradigm: eat less and exercise more.
For example, eating less is important, but eating too little is counter-productive and can do long-term damage to your basal metabolic rate.
Exercise is good for overall cardio fitness, muscle tone, joint health, and some excess calorie expenditure, but your body will not allow you to exercise away too much energy too quickly. Too much of a good thing here and you can end up damaging your BMR, you will feel exhausted/injured and your body will break-down muscle as much as fat.
https://www.vox.com/2018/1/3/16845438/exercise-weight-loss-m...
Your paradigm sounds a lot like what the contestants on the TV show The Biggest Loser did, and the vast majority of those dieters damaged their metabolisms and yo-yo'd back to their former obese selves.