Football is incredibly fickle and I don't think tiki-taka is as 'in-vogue' as it was. Pre tiki-taka everybody raved about wing play, during the Barcelona and Spain dominance everybody swore that passing the ball and keeping was the way to play, nowadays its much more the 'in thing' to play a transition based, counter attacking game (a la Real Madrid, Bayern, Germany).
Slightly surprised about the anti Lampard posts here too. You have to remember, to the casual fan and the potential 'floaters' that the club will want to attract wont be interested in watching Xavi pick the ball up deep and pass it to his full back 40+ times a game. A goalscoring midfielder like Lampard is a solid initial signing IMO both for on and off the field, no matter how short-term it may be.