If we brought for arguments sake Vardy or Keane, then Lukaku would become the reserve striker. For me Lukaku is not the way forward when we play at the higher level of the premier league and certainly not at European level.
Without looking up his goal scoring figures I think he has managed a total of 16 league goals, ( I stand to be corrected on this ) but if this is the case then he is not exactly tearing up tree trunks, it is what I would expect from a middle of the road Premier league striker.
Sir Matt expected at least 20 goals per season from his centre forward, and the two inside forwards, plus around ten from his two wingers in an average season. Not saying they achieved it every season but those were the standards to aim for.
This season we have managed around 68/69 although conceded around 27/28, which is very good, however the goals for in my opinion is poor. For me Lukaku is not the type of player who can create his own goals, but is dependant on others too supply that final pass. What we require given that at this moment in time our mid field and full back/ wingers lack the ability on many occasions to make that decisive pass is a striker(s) who can create their own opportunities.
Perhaps I have been spoilt, having been able to see some of the very best of Utd., players from the 1956 side all the way up to recent teams. Paddy Crerand a wing half of class, saw him play a diagonal ball from right to left a full 70 yards to George who did not have too check his pace to take the ball on his left foot, result a goal. This was not the exceptional pass but the norm. Now we have Young and Valencia if they hit a accurate pass 1 in 10 it is applauded, is it a wonder that our striker(s) have in my opinion such a poor scoring rate.