What exactly are you basing this on? Dele played the majority of the first game injured and hasn't featured since. Also Dele is 22 and Lingard is 25, Dele had more league goals and more assists in the season past. I rate Lingard but I find the comparison to Dele a bit odd as 3 years is a long time development wise.
Aye and also it’s pointless comparing the stats of a second striker with an attacking midfielder.