Hello excel gurus

I have a question regarding table names.

I have the following formula returning a value from a defined ["TeamJan15"] table: =SUMIF(TeamJan15Tab[Team:],B3,TeamJan15Tab[Days])

However I want to use the column value as part of the table name

My columns are named Jan15, Feb15 and so on.

I tried using concatenate as below but I have a suspicion that I cannot construct the tab name; as this is stored in excel somewhere.

=SUMIF((CONCATENATE("Team",C$1,"Tab"))[Team:],B3,TeamJan15Tab[Days])

How do I carry this out?
Thanks
Christos