Just for the record, concentration (in the current rules) doesn't require you to forego your action; it's just that you can only keep one "concentration" spell up at any one time. Inevitably there'll be a feat that makes it two. But the point is, you can still move around and cast other spells while concentrating.

Overall I agree with the comment earlier that the issue is not that wizards in the current playtest get too many options; it's that fighters get too few.