We just don't score a lot of goals. Look at the latest team from Ireland and England. From the whole squad we're at 30 goals. Steven Fletcher needs to bag a few for the national team, that'll do wonders for him. 1 in 18 isn't ideal from our main firepower.
Agree with other posts, Chris Martin looked totally out his depth on Friday and last night. Russell and May injected a bit of passion when they came on. Hopefully if they keep progressing they'll be in with contention from now on.
http://en.wikipedia.org/wiki/Scotland_national_football_team