93 Chapter 4: Fluctuations in Jet Tomography increasing the initial sQGP densities to unphysical dN/dy > ∼ 4000, the non- photonic electrons from heavy quarks can be artificially suppressed to R$_{AA}$ ∼ 0 . 5. Thus conventional radiative energy loss requires either violation of bulk entropy bounds or nonperturbatively large α$_{s}$ extrapolations of the theory. Even when ignoring the bottom contribution, Ref. [379], found that a similarly excessive transport coefficient [380], ˆ q$_{eff}$ ∼ 14 GeV $^{2}$/fm, was necessary to approach the measured suppression. The main theoretical problem is that bottom quark jets are too weakly quenched by radiative energy loss. Their contribution significantly reduces the single electron suppression [374] compared to that of the charm jets alone. While the current data cannot rule out the possibility (2) that the bottom production in this kinematic range is overestimated in NLO theory [381], in this paper we pursue the more conservative approach of examining the inclusion of a previously neglected pQCD component of the physics. The recent work by Mustafa [236, 382] and others [383] motivated us to revisit the assumption that pQCD elastic energy loss [147] is negligible com- pared to radiative. In earlier studies, the elastic energy loss [147, 224, 229, 230, 234, 384, 385] was found to be dE $^{el}$/dx ∼ 0 . 3 − 0 . 5 GeV/fm, which was erroneously considered to be small compared to the several GeV/fm expected from radiative energy loss. The apparent weakness of conventional pQCD col- lisional energy loss mechanisms was also supported by parton transport theory results [138, 249], which showed that the typical thermal pQCD elastic cross section, σ$_{el}$ ∼ 3mb, is too small to explain the differential elliptic flow at high