Comparison of $\langle $d$E_{\mathrm T}^{\mathrm{em}}/$d$\eta \rangle / \langle N_{\mathrm{part}}/2\rangle$ versus $\langle N_{\mathrm{part}} \rangle$ at midrapidity from the PHOS, from the EMCal, and as calculated from the measured pion spectra. The boxes indicate the systematic uncertainties.