At least one other exemplary aspect comprises a method comprising: (a) receiving electronic data describing a trading order; (b) receiving data describing a selection of one or more first trading algorithms from available stored algorithms for execution of the trading order; (c) commencing execution of the trading order via the one or more first trading algorithms; (d) evaluating, during the execution, execution performance of the trading order via the first trading algorithms; (e) comparing the evaluated execution performance to one or more pre-defined conditions; and (f) if the evaluated execution performance fails to satisfy the pre-defined conditions, switching execution of the trading order to one or more second trading algorithms. In an exemplary embodiment, data describing at least one of the pre-defined conditions is received in connection with the electronic data describing a trading order. Related systems and software are comprised in other aspects.