I think we need two things in terms of the team as it is now and our future after moving into the new stadium. Firstly, we need pace - real, burning, unstoppable pace, allied with good close control. And, secondly, we need a statement signing to demonstrate our evolution as a club post-arrival at the new place.
In my mind, I see it as a choice between two types of players - the type epitomized by Bale...and the type epitomized by Christian Pulisic. Bale is the established world-class star, with his experience at the very top of the game and the sentimental value from the time he spent at Spurs adding to his attractiveness to us as a club. However, his downside is that he's injury prone, entering the final years of his prime, on enormous wages and might not fit in with a pressing philosophy.
Christian Pulisic, on the other hand, is not an established star...yet. He is supremely young (I think he won't turn 20 until after the *next* summer window closes), he has a lot to learn, and he'd be a prospect to develop, not an experienced world-class star we can utilise straight away. However....he has huge potential, is perfectly suited for our sort of pressing system (as evidenced by his success at Dortmund, a club very similar to our own), *and*, crucially, he is American - and the USMNT's great white hope. In realistic terms, he is probably the most skillful, most promising player the United States has yet produced, and will (injuries and form permitting) be the face of American football for the next decade and beyond. Thus, he would fit *perfectly* with what we want to do from a marketing standpoint - America's best player, playing at Tottenham Hotspur, the club that owns the stadium in London that the NFL will shack up at for ten years. With our advertising, our branding and our overseas tours seemingly all focused on the States for some years now, Pulisic would be *perfect* in terms of giving us a leg up in the American market - and, together with the NFL tie-up, establishing us as one of the top Prem clubs in America. This also fits into our tie-up with Nike - Nike sponsors Pulisic and will do so until 2022, and no doubt they'd love to have him rock up at a club which wears Nike gear over, y'know, Dortmund (who use Puma).
You see the difference in those two approaches. The former is driven by sentiment and huge ambition - the latter, by calculation, marketing concerns and a desire for gradual progress, as opposed to instant attempts to reach the top. And I think where we are as a club now predisposes us towards targeting someone like Pulisic over someone like Bale.
They're both rapid, they're both skillful, they're both players that would improve us. But Pulisic fits into where we are as a club in a way that Bale currently doesn't, imo. And, for what it's worth, I think we really will go for Pulisic at some point, and that we're probably monitoring him very closely already - it makes too much sense for us not to try. Maybe as soon as the coming summer, if Dortmund struggle.