Yes and no. Ultimately every 2D game is limited by the artist, in this case DC, who is already drawing full time. Adding more people in other positions may (greatly) improve the process and refine the game, but it won't speed up the development as a whole.
In other words, if DC needs another 3 years to draw the art for the game, the game will be done in 3 years plus the time it takes to prepare the final release and it won't matter whether they hire more coders, posers or so.
Hiring more artists on the other hand is a completely different matter and would require DC to change his own role from being the one who is drawing his game to being the one who mainly supervises/instructs other artists. And that's a step no 2D weg here has really managed until now. It looks like DC doesn't want to take it and for example Magicnuts/Chestnut seem at least sceptical about it, too.