There's a lot more involved than just spending more money and bolstering fire-power. The first thing that needs to be straightened out is the structure of the military itself.
Is there corruption in the military?
Is the purchasing process transparent?
Is it a KMT, old-boy network? (I don't know for a fact, but i would like to)
Are people being promoted according to merit?
Are the soldiers being trained efficiently?
Is the chain-of-command functioning efficiently?
When these basics are investigated, and, where necessary, reformed, then we can address the question of whether they are adequately armed. But if the military is being run incompetently (again, i don't know if is or isn't), then it doesn't matter whether they've got the latest and greatest weapons or not.
Tsai Ing-Wen has only been in power five minutes, so i am prepared to cut her some slack. You can't reform decades of decay in a couple of months. However, the time has arrived for her to start the journey. It won't be easy going and there will be powerful people throwing up roadblocks every inch of the way - but ultimately she will be judged on whether she is up for that fight or not.
To be honest, i don't really care too much about cross-strait relationships. The status quo is fine by me for the time being. There are far more serious internal problems that need attention in Taiwan and the key to tackling them is a root-and-branch investigation into institutionalized corruption.