Politely and respectfully disagree.
When played consistently he and Lukaku were an unstoppable partnership.
They were almost unstoppable at times, but their trouble was inconsistency and lack of fitness. Lukaku had some great games for us, but some really terrible ones too - look at the semi-final V Man U for example - while Deulofeu was simply unable to function for 90 minutes. His being taken off last Saturday was probably the most predictable event of the day.
As for our current forward line, it's too early to tell. Let's raise the question again in a few months' time.