Though the original franchise owners and founders of the USFL had promised to abide by the general guidelines set out by Dixon's plan, problems arose before the teams took the field, with some franchises facing financial problems and instability from the beginning. Due to pressure from the NFL, some franchises had difficulty securing leases in stadiums that were also used by NFL teams, forcing them to scramble to find alternative venues in their chosen city or hurriedly move to a new market. The USFL had no hard salary cap, and because of this, some teams quickly escalated player payrolls to unsustainable levels despite pledges to keep costs under control. While a handful of USFL franchises abided by the Dixon Plan and were relatively stable, others suffered repeated financial crises, and there were many franchise relocations, mergers, and ownership changes during the league's short existence; however, none of its teams actually folded during any given season. These problems were worsened as some owners began engaging in bidding wars for star players against NFL teams and each other, forcing other owners to do the same or face a competitive disadvantage.