Growth vectors in the log (n)-log (B/T) plane driven by our merger experiments, compared to the observational distributions of S0’s and spirals. Each segment starts at the location of the original galaxy model and ends at the final n and B/T values of the remnants. The growth vectors corresponding to the merger models with dense spheroidal satellites by Aguerri et al. (2001) are represented too, as well as the bulges resulting from the internal secular evolution models in pure exponential disks by Debattista et al. (2006). Consult the legend in the figure.