Hall implies order-conjugate in solvable

This article gives the statement and possibly, proof, of an implication relation between two subgroup properties, when the big group is a finite solvable group. That is, it states that in a Finite solvable group (?), every subgroup satisfying the first subgroup property (i.e., Hall subgroup (?)) must also satisfy the second subgroup property (i.e., Order-conjugate subgroup (?)). In other words, every Hall subgroup of finite solvable group is a order-conjugate subgroup of finite solvable group.
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Statement

In a finite solvable group, every Hall subgroup is order-conjugate.

Facts used

ECD condition for pi-subgroups in solvable groups