When checking youth players. Bowlers especially always check their entire bowling stats. If you had a bowler with an average of 15 and a bowler with an average of 17, have a good look at their Economy rates. If its around 2.81 then they will be very useful for Odi cricket, whilst if up around 3.5 then they are more likely to be a strike bowler. A good bowling attack will have one or two of each.
Same goes for all-rounders, some might only have a bowling average of 20-25, but if they have a really low economy rate, will make a useful 5th bowler.