It’s maybe very difficult for him to achieve that, and would ask too much from him mentally. He doesn’t have the same build as Pogacar or Vingegaard
Let me take this completely out of of top level cycling, and give you a sample of one: me.
I was 165-170 lbs in High School because I loved the weight room (and playing football, basketball, and riding/racing moto). Army basic training slimed me down to 155, but as soon as I got to permanent duty and access to a weight room I was 165 again.
Once I got back to civilian life I was looking for something more fun than running for cardio so I bought a mountain bike. I'm a competitive person so I did a race and was hooked! I started living the life of a mountain biker and by the time I got my first Pro NORBA license I was 145 lbs most of the year (I never got above 151 in Dec/Jan).
My point in boring you with this story about me is that if a pack fill USA dirt racer who was couch surfing can go from 165 lbs to 145 and maintain it, why can't a top level pro? Also, what does 'same build' mean? Have I had 'two different builds' in my life?