In Florida in 2009, the
annual felony caseload per attorney was over 500 felonies and 2,225 misdemeanors. That was just the first link I clicked when I googled it, I could spend the time to post a shitload of facts from other states but I don't really think that is necessary. There are 260 workdays in a year so they are handling 2 felonies and 8.5 misdemeanors every single workday. That includes all of their time to prepare, talk to their clients, everything. Aside from the obvious shitty council it also hurts poor people another way, since a ton of poor people can't afford bail they are forced to sit in jail for much longer before even being able to plead guilty. A first time offender arrested for possession can sit in jail for months before pleading guilty and getting 6 months probation. To make it even worse if they are innocent and want to take it to trial they can sit in jail for up to two years, sometimes longer, awaiting trial.
And again, you are missing the point.
94 percent of cases are plea bargained. So when they initially charge someone, by the numbers alone, they have only a 6% chance of potentially confusing a jury and a 94% chance of having more ammunition to force a plea bargain. They also aren't dumb and they can foresee a large portion of that 6% that might take the case to trial. Not to mention that if they do overcharge someone and it's one of the rare cases that do take it to trial that they couldn't foresee they still have the ability to drop some of the charges and only bring the "meat" to trial.
If somehow every person criminally charged all decided to take their cases to trial a large majority of them, like 95%, would have their constitutional right to a speedy trial violated, hell a lot of them already have that right violated right now. The courts would have no choice but to dismiss the prosecution with prejudice for most of the criminal cases going through the system while they concentrate only on the worst of the worst. Even if just double the people decided to take their cases to trial it would probably have the same result.