How do we know that was actually his strategy though? I've seen nothing whatsoever to suggest that's how his teams play, and I think it was more a case of Pompey being well organised and closing down well to stop us playing between the lines in the first half, so a few players resorted to trying long balls instead. Clearly there was words had and a tweak of something at HT, and we had much more joy passing through them in the second half.
I think people need to put aside the fact that this was a derby game and look a bit more objectively. Today was the first time Still had all his new signings available and was able to play his preferred formation. I thought the second half was much better than we've seen with the back 3 so far, and there were encouraging signs from some of the new recruits (notably Fellows and Jander).
Up until now, Still has been forced to work with only what was available to him. The time to judge him will be once the new players have bedded in and we've got a settled starting lineup.