Best way to modify this particular model What My Model Currently Is


Hello Everyone! I am an amateur blender user and I mistakenly added the legs to far forward on my model. 

I need to reposition the legs further back, on the y axis of the body of my model. 
I figured there are two ways to do this. Either I detach the legs and move them back or I cutt the butt off and make a new one. 

The "Body" of the model is a sphere that has been extruded on the Y axis. 
The "Legs" are a custom extrusion. 

What would be the best way to approach this and what tools should I use to accomplish this? 

Thank you for being an awesome community and helping on your free time, 

Drew :)

What The Model Is Now

With help from the community I was able to produce this. A nice mesh with good topology. I realize this model is a little bit more square around the body, but Im starting to like it :)
I don't think your topology is good: too many edge loops, some weird ngons, a sphere to make the butt... you should probably try to make something simpler, it will help if you need to to make any modification, 

As BatFinger said, start from a mirrored cube, add edge loops when needed, and extrude the different limbs

Here's a quick try: