My Dachshund is obese!!

My Flint is really overweight and the only person to blame is me.... I need to take all my dogs for walks everyday. The other Dachshund, Azura is okay but Flint needs a serious work out everyday so he can lose weight. And that takes time and dedication!! Sometimes It's hard when you are busy, busy. I also think the dry kibble dog food is making him that obese because he will eat until he is really full. And he will eat Azura's food too. I think eventually I will stop feeding that dry kibble and start cooking more nutritious food. That dry kibble is killing Flint!!