I think Bula is fine, but perhaps slightly disappointing compared to what his potential was when he first came into first grade. I don't think he's markedly improved at any area of the game. Underwhelming as a ball player and while he doesn't really stifle our attack around the edges, he doesn't add a great deal to it either. Obviously a great threat in broken play with his speed and while he's generally good under the high ball, there is an error or two in his game.
He's at the level of player where you can conceivably upgrade them, but at the same time, you run the risk of replacing them with someone worse if you don't re-sign them. In an ideal world you manage to re-sign them at fair market value rather than on overs, but sadly the prospect of that will become trickier going forward with the new teams coming in. If we do re-sign him, great. If not, I'd be looking to Newcastle to try and pick up one of Fletcher Hunt or Fletcher Sharpe, especially given the news of Ponga's long-term extension.